{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "833590211",
    "entityType": "User",
    "nonce": "0x9d61713a021edb55fcc8c957d59dc0ea82fbf32caf0c7c282ee423053c4d7398",
    "signature": "0x299616d55942a4eeab9be8c5884c0a271dc35c4de31e4b10ad5ca4aa74b03fd3417809c029c1fddf784459dbcf8483dcd5ed44c09d5696ff85fb9d17a865f0bd1c",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}