{
  "manageEntity": {
    "action": "Save",
    "entityId": "214253",
    "entityType": "Track",
    "nonce": "0x96b02b7f26594d698e47cf8d42423307411dad91fb2d38a797a181a61d3d741f",
    "signature": "0xf3286fa72234bb1d6b2a2df698e88885bc095987dcb31e11ef578073acc5e8506647ea39759a9001605ddd42ec61662bcf838a5be8c9177404436701f0bd6eac1b",
    "signer": "0x8a278E79c8E7e655B94c3e6798972A44Daa2c6ad",
    "userId": "24098924"
  }
}