{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887242445",
    "entityType": "User",
    "nonce": "0xb1bbe3306f81ecac2bbd6544fad51dc52c29e47579e59fc111dee8fbc9839f33",
    "signature": "0xd72c45746a295cdc699f64f6642b2c49b3b3a377c8c3252356108e258a13910a4b0c63b285bb83999801a4850f5888984fd260f3573f4af19e26789ad8c7491c1c",
    "signer": "0x27eB4b469aE053b72c26B3e9c68a655390Fe24fB",
    "userId": "42216"
  }
}