{
  "manageEntity": {
    "action": "Update",
    "entityId": "117638061",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierae6y7z3wgzm7fcmuyiqdeewzevnm5nfllays4wargs7hpocrjvzbq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":101336899}]}}}",
    "nonce": "0xbcdc05b37fd3605a19de45f70967972e354d751103e74a169d0e678199cc455c",
    "signature": "0x3d685b3c4166d74aaeb0684ecc3e5dcfa9b23fcfe1573342c23651d0cd13ee63022fe0e1adcbd02ae6341fdd98e35a104f06f11c64bf3fb9fedc5a2a674b76d41c",
    "signer": "0xE7Fc610afe51483AF4fB8fb5F981AC5843548D77",
    "userId": "117638061"
  }
}