{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "118335818",
    "entityType": "User",
    "nonce": "0xfc21a1eb921ea1c14b73950687d41fa7eb45a0f4bce0576726414fb9a7efd6ee",
    "signature": "0xef401cd54faec304f71eaa71a8033e1d86feb98d1b1dd52ed328beb5481d86ee6a169e8f8b6cbcfbb08a32fcc9264ec6bbfd9ce985f79c9889845a57a0ea2c8f1c",
    "signer": "0x18a7B3405E81900d8aF72d98D5f2C54e2C988f9b",
    "userId": "42634173"
  }
}