{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x45d66dc5812b8fd0cc6484495eb8015ea7942a9ce02931e63e1690ee5422d07e",
    "signature": "0xa74200364b6014a6f1057cff96a1a5e01e1ae1571747171adabe520746eff4181a659aa74b478d36ce6d2a3462972399ed991945813d95d96c9f96ef72b327871b",
    "signer": "0xa53b329c92FaC9D5e60a7e377156d70D6e182DbE",
    "userId": "698879286"
  }
}