{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x754e9bdf7f7330376cc76c5afee000ab5fbee1abe44b0552b01771912c686097",
    "signature": "0x184b09e1549d784145a837ab629d7827175fb7a18698317eb08305b126b70513302d622e209dbbb5eb3965c93764f9cabf4aad5b71a78bf5b21840104ee019761c",
    "signer": "0x2B55aCd5bD82288aA03B582D71F4859c9748e5F0",
    "userId": "832437194"
  }
}