{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7250700b4ef1bfa22be033833f0443aaf43abf0183262ca074f6338885be9dc",
    "signature": "0x6464a35fa7383bcb39e78b63ff21a4862f39f5f39c5822cce39c28d7862ca90f54a8267aa9914a494e6ba9df5f274e6d3120f17eef134c60af5e9eec34e9b7201b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}