{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89e43476fb1761bc341fc015d4cde9a44f0b8b7f253bc04a48d46ca2a7fb4010",
    "signature": "0xd3e399da2d30c20c07a8064d352f43c8004c935f1369cb35434aa6aed86441e84e921298ddaad2233886c937debb1ae0e3f5f7883183232f1cd392f8ba388f4b1b",
    "signer": "0xf01B5B8eF822B487cCBd5f49e5e66620376126c5",
    "userId": "16063324"
  }
}