{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148569",
    "entityType": "User",
    "nonce": "0x76a84e228327670e1e4fca3c77bd2b642c9dc86e7a0ff612ca829a9a41c3bd25",
    "signature": "0x3c75ea59271f35c49f25046ede5210cb3938bb1dceb2d5843c691f7f5cfa285e5723747f3bcd9cfc98cfd263312bc937992aaef03db545098c9a3246439230041b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}