{
  "manageEntity": {
    "action": "Update",
    "entityId": "294359809",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4smvjl6tck5n7nszomay3actyprcfesedexmiy6adeqsl7dxry6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2007455551}]}}}",
    "nonce": "0xafd5e21feb3597d12f030bb826ece5e4a6885cb7e8342869959f9cd87eff4ebc",
    "signature": "0x14cb7c8b9e572259e0a6b013d3e6cf72a2d55cec84f7efed42c362bc597bfbcc24e8d71aca47b1d2b2528494199051dbfc394f9e3460f174814d561a0f20e7641b",
    "signer": "0x776FC9416d3338b25E1cbC297e10B7d871211673",
    "userId": "294359809"
  }
}