{
  "manageEntity": {
    "action": "Save",
    "entityId": "1212076182",
    "entityType": "Track",
    "nonce": "0x5c32ecc04f5af1f3457896e559c00c19e34774605809659575e4990911a676f7",
    "signature": "0x6f453f2ea0d786251fc16ff41ef0fa74c45d168b8f0eb875359b0b6832324e842c2ba687e8100ea4a0b198e454441af2f3a25ccbce0fe0ab80afa322c09100991c",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}