{
  "manageEntity": {
    "action": "Save",
    "entityId": "2093912608",
    "entityType": "Track",
    "nonce": "0x7d3d5f2a41aef2989af41b5031cc34c0d714de5ba331dfe0115e12ece92be50c",
    "signature": "0x6730dc05ab5c2ae70dbc8ccf249c60f1479a6203b946faf0c95754d9cf66a100748ed018b2de0810195ac3c6d1b101bbb3b78d3fad0d692cca96938514780d8d1b",
    "signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
    "userId": "167557"
  }
}