{
  "manageEntity": {
    "action": "Save",
    "entityId": "1700746734",
    "entityType": "Track",
    "nonce": "0x965acb4847b1dd68b6d0e9e58d1e9f2a3ea6f77b9b101318bf51a40d803848df",
    "signature": "0x07cebbb5d461373f4e3ce315df952244392436fb6d4b2266deb1e985034398880daa2bbd97fe115603ac2a50905e83baca4177f35dfafd2044f796c3d54e3a6a1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}