{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c87f378ebbcc9ee27b1d8716fa499e03b2685613f997750e7c284a16019b634",
    "signature": "0x81e70a56e68ada80561adc04947468cece9e6d29f4c709b0e1cea2016612d16d7a5df0a3f659c27d3e948f054b6be69746c2b8a4014da2bfacc96477fff725451c",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}