{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6f22b204b86224bef012cf2de488eb085b315d71dd4c8206dede13a5e41d1f4e",
    "signature": "0x1c37adfaf3426a4c293e334ee535d9723bc72873a1bfef76a568b2404684855579f0436a709243a2724264690213e8cebf17add94fbae494f7067a8e114f9c5d1b",
    "signer": "0x415F454A0D55685431c9Ec97FbA04692C70bE8B1",
    "userId": "698843743"
  }
}