{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7ebbaa718d7bf4551c18fdc22e93d9e0fa2c181b3745282106b944b350f91656",
    "signature": "0xa371b35bb2c52dd2335dc75a73c8dc7b6b98c1134eab5545f07784bcbca556bf436c986b26d2fe06dec024a1cc63d37a47d20310b8387ebd5d4a84f1b220f90b1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}