{
  "manageEntity": {
    "action": "Update",
    "entityId": "279485188",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3d5bc242903b097906e7076891e8f5752a8a753c11f728558813ac56229e19a0",
    "signature": "0xc70737cd6319c89c9885eb6bd844112fc3403e5cc636f5da8654e72b68215aa03efbd4fce7acdd9bd1f362179c15c55939f52f8de0e532c0c671bfd1cbc54b351b",
    "signer": "0x6C276e55158027C6583998cc21C3a0D02fB68C7F",
    "userId": "279485188"
  }
}