{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984268095",
    "entityType": "User",
    "nonce": "0xc9811b7f43455ca43c421d005618f2d814d47811eb2afed2b59734ace91daffd",
    "signature": "0x300b33f232e652dd94b82d30cba7ed6a82314cf1f66d6cf7a2eb399e640c005d086c7385f7909071dfb390035dea777ce52a85599ea1d4f2a41ccb98349b4f8d1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}