{
  "manageEntity": {
    "action": "Save",
    "entityId": "1272536776",
    "entityType": "Track",
    "nonce": "0xbb7994e56bb042ac95a2ce44377f11f484b3af2e8cd5f1a0ccc5787bc89b7803",
    "signature": "0x04d2837ec71fcd684bddaf463e48f506e31937cac3caaeca255395bf2e5697ba6632c83fc6b0ae8bc2903ee532e7e60e25474d565c3a54bfb0bf86bf186577051b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}