{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x58c665a3447806dcd4fabe5b7c185e50e8b6c141620390ab8390a51ea9e4afdb",
    "signature": "0x28d6da460e6db3f070b53901b7f88f6caeee5e7f84daff52fade14606e56f2b96728e5ca7a33f816890b7036dc9e081376dedd4899810d8f3fd6408dc29723d81b",
    "signer": "0x5dFA14CC412e122c7c74C90a9AB636C6a132D859",
    "userId": "657363523"
  }
}