{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x93fe0c533ee4bfeb26846da86ae7c73a47958d2c510e8aa8301a0b2630b24bc9",
    "signature": "0x95da3899d7c54fe515512391776b9bcd6faba019706886439f1fb38f35ed499742a4ed707afc88bb518482833dc26edff209bdb8721738a1f49765cccabe76a31c",
    "signer": "0xA181eeE49e401F522eC7cD04a059DA3d12720bd4",
    "userId": "10606782"
  }
}