{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152700",
    "entityType": "User",
    "nonce": "0x84aa918ebecc9d3a234440c2dafdc9905ec8ffba4562bf95352f7a9078111844",
    "signature": "0x2d4d6825da9250b43bdcffe3dd22cd1670add80817a923598c521030a72bfb931c85023448147afeb23c3da56bda8950a07219fa95943daf4c2561b4674947c11c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}