{
  "manageEntity": {
    "action": "Update",
    "entityId": "383711863",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4b7c21d6c3ffe09833e466edfa3ad7166952c68c81ff87168951c3344be1c9ae",
    "signature": "0xe05e0dc9ba869ed03961fc06188ebf1b5cd0504a95df431c563e6b0c9b4197a059757b65eb86f85bf58d8b366c573e0b63445de130f05d8b4e88d58e5f47d2ef1b",
    "signer": "0xd6268f1CBCd5326B1fDfbF9571c189641aFB84d2",
    "userId": "383711863"
  }
}