{
  "manageEntity": {
    "action": "Update",
    "entityId": "179492551",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7a16606236193e2200af3f33afeb7454764873e996a8b0a5375909942db89cfd",
    "signature": "0x3c81efbb5a3c826ef6cde68860d189981f2188ef0f0b4ea8e3a930659f44ca6b06cbdc06b77dcbee4c6a3aa28fe9d3e2eef908b3b862a0e492cb8aaecf1245421b",
    "signer": "0x6DaEB57455d2Bf6F5a24b065605914c78110F503",
    "userId": "179492551"
  }
}