{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141429",
    "entityType": "User",
    "nonce": "0x53d21e76f7e450a51ad75b88652dd0a9949146e2e35befee5b1c615d4ef29f21",
    "signature": "0x8084beed8e8ffc330a21734e10ee53bf4394f9a2c01e68c464e17d86cb1c45f23874affa9de1cf932d9bb5dbed73f1ef6969f95b2df07ae0bd40372b85e4da121c",
    "signer": "0x4ec0618BF74aDf72181673DDa518f0bf7781DE7E",
    "userId": "703354792"
  }
}