{
  "manageEntity": {
    "action": "Update",
    "entityId": "224286509",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfc052f8f85251d97ff0d82c57858ab7288ac9a8d1fd0fb8206e501ebc4350c44",
    "signature": "0xd641ecb2e10e15bb15ff4f06fa33ef3a0442dacc7891e72fd6a0dbfcb726dd9c122d16353cd101483d1c66673af37d9505dbc05d6ae59762b6c6627111852cda1b",
    "signer": "0x53D0a8347BAc9209407dc232C2d2390d6F59266f",
    "userId": "224286509"
  }
}