{
  "manageEntity": {
    "action": "Update",
    "entityId": "773473058",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb7fab4ca2092bb13466595082ea0547d747992160fd2d82d07d94dbf918dbb98",
    "signature": "0xfc1ad469bd17f5be7670344193a64e60c4629ac78b7903d3b3a6724a771dbe39212a0426003e706a72c445ecef5d6e068b5019616668dbce494f13d82b3bcb271b",
    "signer": "0x8FBba6a789c135b0321E812D6F302c125Bb3Ff5B",
    "userId": "773473058"
  }
}