{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x218a4bbe8673ad1dd3bb947b4c2caaadf283714aee0c597a15e8e3818939a217",
    "signature": "0xd0f53f26bbbfa162900f3ad12719ebcc47d5a58ca166e8bf70268820579ae30a0616db4d906eebe5582d477ec1bc2438ea37318b97bcc66b4699fae5ff1ea0361b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}