{
  "manageEntity": {
    "action": "Update",
    "entityId": "87961106",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragrghdlvph45xkpc2ryi6uicgshwquogyxqmfommhawsdatoa23nq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2118320187},{\"type\":\"playlist\",\"playlist_id\":334680225},{\"type\":\"playlist\",\"playlist_id\":455407784}]}}}",
    "nonce": "0x3eac24a612811d422cea8608343c99ed36cd54b07f67206837a0ab3cd8020e74",
    "signature": "0x8e7ace2abdd34038536cdd8b3530498b81f05ebde6cc7cfcfbdb8faf1cbc26d024cd685c5d5c56243c8678b9443e2f9d0f709d3403133bc03171e2c6da7f10b51b",
    "signer": "0x46e7101c875D60D850099f5251d848716a5CfB80",
    "userId": "87961106"
  }
}