{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313481598",
    "entityType": "User",
    "nonce": "0xf2bc21b2d3945920b6bf54f2b3bf49d8e4a17e3f603d4b423f43bb2b1609174e",
    "signature": "0x3c5d91f906888471b2154688238af67ad456b59efa9304847e28e61dda8185c41f4bd8a23c512f5bb4f478da574762788f8283b2b9eda3be488208cfdbc56ef01b",
    "signer": "0xe13691cC0417F2c4B91aFDFb3CcB3a516F3E78bF",
    "userId": "4727047"
  }
}