{
  "manageEntity": {
    "action": "Update",
    "entityId": "418312750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe8a2321b1b224b9c6e85bbf87524b82d264a49e18ff82d3922852013bf3d0891",
    "signature": "0x4959dfbc33462743ed9d18001ef049c759dde495da25a2c4237b3a430a149bde533d4f2e081402b755281b8f607c26ec72a9b49840e5723bac58342c92bc6b8f1b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}