{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1e84a7da95a02bd4854bf6f7949e9d4e2985bd348b7159bf66188e74aa7b2fc",
    "signature": "0x3b84dc5d46e1ddb221336fac9c544e7e5ea813fa2ffabef87fa670cfefcfb0fc67a4d561096b002ec5de7e328010d1f2b70dc2be27d225690656a326ca9c2b2e1c",
    "signer": "0x086a9152Ea1A2410EF4e88500C5C719337E5Eb8a",
    "userId": "495137922"
  }
}