{
  "manageEntity": {
    "action": "Update",
    "entityId": "476180660",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x23749aebbf593041d743c97e00ddda09ee30862f9e1895d74140028b01be2234",
    "signature": "0x36af2a679375e511464b0fd7830c60f1a03e460cf797434478ad78e01264ba0941232aa1c5e86ff693c86f838ccb3c19cffdd71314c5ae06528e9818330af4971c",
    "signer": "0x1a92e17851B135a180c1FAE8aABcB3614fd4D9Fa",
    "userId": "476180660"
  }
}