{
  "manageEntity": {
    "action": "Save",
    "entityId": "63193",
    "entityType": "Track",
    "nonce": "0xef1d08ea7ab49f1c533cea9882af95ee37f3dabdee6e36e48720f7ab0f1aa1e4",
    "signature": "0x98d683ba989020426147dce2661c047b1bfab39d6dba17909bfcfba8f89764756db442a9ddc58007b974cdf55288d2089def38972bb958351777da2b36e076241b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}