{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "801898123",
    "entityType": "User",
    "nonce": "0x528b7a5794b8fd59bcf5e2a03fedd74c834b75c07d88333ba48b35d28d3800aa",
    "signature": "0x75a4baaa4dab0a87c5002225e99b5c1ad7f59f7851ad15a198554c7658f1819a706fd9ad04025847b2c1c5486999e3555e10c67741ad6f2da994ff5298d5570d1b",
    "signer": "0x9742BFcda3E998678A9f313149c705E80899d5c5",
    "userId": "350957781"
  }
}