{
  "manageEntity": {
    "action": "Save",
    "entityId": "1563936395",
    "entityType": "Track",
    "nonce": "0x796614ac8bbf8ddeed13a59850facb78b113a7d724f2d272467208bad7404f26",
    "signature": "0xe1007a2b0d62dd4e515714e543828f6f8f5255437f55fc6396af66e21490324b603b0ed38b371d892f146363c915b723ae0a275febdced5ed9cff30716c8bb001c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}