{
  "manageEntity": {
    "action": "Save",
    "entityId": "11797742",
    "entityType": "Track",
    "nonce": "0xfc7f9b6a3dfab4075c29a73812b1c5d646c1e89c179689ea7ce0222105a43a15",
    "signature": "0x0f4221ae0092e8d0ce32244d1deb6c183e7d892fef3d595c4b1b004b8fb1d57d1ba5eb3f7633c1854d3d9cf13a3398cf2556c84de8272ba4eaecf68ca736620d1b",
    "signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
    "userId": "167557"
  }
}