{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50278306",
    "entityType": "User",
    "nonce": "0x28e257e9e0c1338a2ca8eed5ca531d0581a927fa6e42e86529bd84af2d161db7",
    "signature": "0xd372f5da80c4674e0cf89dcf762834e030d6eecf7c983ca4f34500dbc61be8586f80e82299644d0811a70ed2547277bff11c15a5f67320addfd111326c6c5c301b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}