{
  "manageEntity": {
    "action": "Update",
    "entityId": "419493196",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c7c862c52e97e801134db8a62c7f9cd26335d170232946225970437ab546342",
    "signature": "0xb11bbb4ca0558104489b30e3f9cbf38751b3529aed3c7fdb7a799218819127b222214bd5d11a27f2b669acee78beed535379069a2d6f45caba4a2e09f84403f61c",
    "signer": "0x2AcC4e32e3E5285B2b411A0B49405260ce0f21D1",
    "userId": "419493196"
  }
}