{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164551",
    "entityType": "User",
    "nonce": "0xc05a2155525655d6672aaae65866303edc2eaf03521b8fb61c5565ba6d877f09",
    "signature": "0xc5271003eaa7036a000f7a9d27783f8f341785766f036a05226b3b4803ad542d691cd1a73e05a4c507769a11dace847c49e33a52dfe88f3bc363fc4fae35f6cc1c",
    "signer": "0x670E4517CCB95F2b528b0D6B0E50DC7a0f51f838",
    "userId": "555604608"
  }
}