{
  "manageEntity": {
    "action": "Update",
    "entityId": "952500739",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x59d32973f3a44ccb6d3b903746ffab0d0d14761974669872ea471922aa443982",
    "signature": "0xcd0c6629e4b229e8d6991563677e5f5fc667ee2a653ea5287d839dad6140ecb02e708c4192519e020fa30205755f879c8021a34fe96737e5cdaec6a5f317253c1b",
    "signer": "0x928a954E2941D941Dc0EE0E96A587e610Ee4255B",
    "userId": "952500739"
  }
}