{
  "manageEntity": {
    "action": "Save",
    "entityId": "262298846",
    "entityType": "Track",
    "nonce": "0xbf34397892e74d788f9139c14eb0771707a0fa88b9ee091f12012d715cb432c1",
    "signature": "0x69f4fc315fe8c5114e3df1d1b4f2edb92ff890e6816ca90202a6258724c01c375003a1966fbd6b96d2730c73b8fb31d2de09929f24874f07db044114bd4001aa1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}