{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348927202",
    "entityType": "User",
    "nonce": "0xc0289096d2eea7664c6ad27a1b30519f77e9207a885209e0bfec4860db14320a",
    "signature": "0x7bff3bac060f75051c6a09b2b4f89fdc8632fc80d52ed3a776b21a39b51ed9eb44e9b122852b841d027dbfd523768b053e6a66063d7c53191ddf0184d99b2e1e1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}