{
  "manageEntity": {
    "action": "Save",
    "entityId": "100014095",
    "entityType": "Track",
    "nonce": "0xfbf0224ee6ee6d713231e2506e43c0dec79abdbf6bf3bd0b42654e5a881ed122",
    "signature": "0x45ff60cc27723f110d42b5009f6350710711d94dfc98c0d602ffbe1d72c5b2c81cde1d95cf48b58f0070a1ba3d0c423bc18f3d81a3187f16d6b58d6a5d6f78da1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}