{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6200",
    "entityType": "User",
    "nonce": "0x4cd1ba395bffa7a7f0620c49efa732d62a9489526bb68767e660fab71ffe759a",
    "signature": "0xf465f97447888baa2a3ffe26d20d2bb8c647c612b5eea2c8a0c7f7a72129dcf144e014dafc2a577ef835242619e7c3101c60e17022c70fd6ec80066bfa47e23f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}