{
  "manageEntity": {
    "action": "Save",
    "entityId": "106587096",
    "entityType": "Track",
    "nonce": "0x00052adc2b23c1314f5fddd5bd37d05602654c7b8c09abc724a642de09087626",
    "signature": "0xf3d041e3f7e6f0837ea68e0abc5ed71883f91553804760037cee26887d374af2131f8403bf230c3bcafbe73744828906286f43b9a2cf0cbe10b05b1510a468d21c",
    "signer": "0x5Da8B4553216Faedf54f0B756f3d3BA7F6781A2a",
    "userId": "680517375"
  }
}