{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991821949",
    "entityType": "User",
    "nonce": "0x2e1672d08d295773dae40f8bcbd6cee3fac9e45a76937436aa01bafa538eebd0",
    "signature": "0x4919e559de91677ff5f2a3525c1fb7c0778fc2e27b329ace5fba2cdb73aae3e52cbb5b344491a4cf33c1feb4dff58236051540d4e69fecf3413e8ea3face39331c",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}