{
  "manageEntity": {
    "action": "Save",
    "entityId": "1810594495",
    "entityType": "Track",
    "nonce": "0xd62e595c2c073673abc1a60058a987ed470c6cb4076ff274d7062769cd384e83",
    "signature": "0xe77f7afb8ab3dbe56cff3e9430026957620ae9b9a0aa8689422c68a6dd8ee5e67d821ba923576e6f2ef31004ffaf28583821aaa12ff1e4df417df224d0bf160d1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}