{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x02e2677c82bb80bd442d7dcfd9fbda4251d624d4f2e050fbda0cc75a05d0b73d",
    "signature": "0x8d63714d410f0bd9c4620af6775c3c922d891c4df359843f49a7b04a8653b53b4283b4014318eabac4ee026ed7582a4d91246af5b17b8a594e003fabc1cefeb21b",
    "signer": "0xD468546e9810419e6a5EA150f20093DE0a525BFB",
    "userId": "921537803"
  }
}