{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x6c1a2a635f0472fd0602ca34058efe2c6757aac920a8e40487a2039610d91255",
    "signature": "0xbc518ea51eb8e9b63ea74bd132166533ab4ab47820f651a597cb7a19dd16a5256ec781bf51e7973fa91790fe8e9ae8bde86436c1ae8d74647b6c13860e78921a1c",
    "signer": "0x862060c02F28f6984692E1Ab0f15419eFdc91D0A",
    "userId": "321032997"
  }
}