{
  "manageEntity": {
    "action": "Save",
    "entityId": "1768796788",
    "entityType": "Track",
    "nonce": "0xba89c4323b98cecdb7cd1972d0946a16ddccd34a348689f41e43b79f5f4c5615",
    "signature": "0x6ab8c287ebf7410b95e7d368e18ddd9059160ca9117432236c2a1c5d434c3452517c8274aa815d9f7e741765aa2c091f8ab46dc9e9cd21f91f9e0ec6cda6674c1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}