{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203299",
    "entityType": "User",
    "nonce": "0xdbe83c088a8926cff15ea32795630feb4024cf9f8191aa1ee6cc2cc12ead8878",
    "signature": "0xd4b951770d829018dbb47aad7af32d84a6e6de450c29eb374be294bc9142b72702d67ff4e86a476734df080b804e52d0c9d7fb8993ed999eb1f6ef2bfe13fb191b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}