{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed02f1bb9646c74701e724630b1bf3750b10397fac8aff3fbb79dd003393b330",
    "signature": "0x6c1efc66ea99306382a735c8d72df027cc841947696612fbcfc3b5175b8a656419b98391f88ee0e71a757b0d95b9044a094c84e97f5adc4f58dab122b60044dd1c",
    "signer": "0x8ed8490C74f2ed2F9d4EFDAe961373276dEa8f0a",
    "userId": "290918283"
  }
}