{
  "manageEntity": {
    "action": "Update",
    "entityId": "4747843",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradrrqknio6mpnuzdl3tu7vnrrlvkqv6wtnczz4otaiusyp77c7h6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1375072795}]}}}",
    "nonce": "0x19cfd6c3fd6d2377a51dbaf87665b79564584a2f45254d02d6a627d1915d8fba",
    "signature": "0x29f471e51c0f933fa0dd1fe54bb5ea2a002ea69827a8ff9c5a9c61fb8fdc774703a585ba0cd91c9089bc78da1dfb3326a50387572bce8553c8ddd3dff3336a3b1c",
    "signer": "0xaDEf4367343c22a59e6eE33b810cE184d737a5ff",
    "userId": "4747843"
  }
}