{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe6cc75290ad898dcc1dbf1f1eb480f288dfa78fc543c476c732bec41c98a2856",
    "signature": "0x85c9bdb6fe423c9ce14c1a75f082fb08b819ba0a1818f92b1d0c9824737c8ded2c5cae9d5af570ff0676ff243dc7e2ab48962b840038983f3b1403d185dd65c31c",
    "signer": "0xAeA5541F304246A9eB4CC1D378d45e3E682358C1",
    "userId": "936312438"
  }
}