{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0xae9252fbd24290677a71408d2d86dd6ea5c3517cdbed031cff227015f29bd674",
    "signature": "0x2be54fa90a6966e8a293a3a1efd334966efa597ac8baa711e7fe6c20d1c9822432f982e8e5282a77910a9fb51f483b4b7c5ec32a696365c43bfb64eb6b9191a51b",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}