{
  "manageEntity": {
    "action": "Update",
    "entityId": "433579009",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbc69b4188d86b48fd72b4556f16e9b4f57b44cf18cb171071b094894f5215180",
    "signature": "0x5ade43bfdd296ce0f6963528fc7a04156da812cf33b25a369fa2b1849bf7515a6173c5c7938712d9b907dd8f575564134eb38bdca47e1a77f8e708b178efb7551b",
    "signer": "0xfDDc1Cc4CFC91b88b14E9682daE7011b2a3F328e",
    "userId": "433579009"
  }
}