{
  "manageEntity": {
    "action": "Update",
    "entityId": "40456963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd72461d6f497967070a6d9627b43a34fd3ecc2f3f9b181f00f14f8f6250d9d3e",
    "signature": "0xff9eaf86d492b2ea5ccbed432df70077096ebc9534e552618bd912f8e7676aa21f6eb8e03ede6a90234c3a412179ea1cee9c16f5a0378c167755cb34fbf985001c",
    "signer": "0xc03B0DC91D4dd69BB843F957bAe8D3B7aA1317EB",
    "userId": "40456963"
  }
}