{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0x44e32adecf73bddadf09efe1ef4477290d950b2780bb9611e2136a06da182c17",
    "signature": "0xcb5979002bfab7214b22ef06e40b3e9b7146ed99dad67058fa3df560e8d25b4577a72a4d8f663edb6cf21678f39786d98f27ff122b7348fb8b01eb7e14f56b641c",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}