{
  "manageEntity": {
    "action": "Save",
    "entityId": "1786232592",
    "entityType": "Track",
    "nonce": "0xa3562740e9e500038e96534c54dfa12e2da3a2a90e70d5c574d6de81f2353154",
    "signature": "0x6403483b86aec06ae9b2034e3184db05b75d16c68389b33a74fdaae1c772d93770b783c736764936018fb7c407c00bee3cf3f83cb3117f4e3a82445b32f948c21c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}