{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149566028",
    "entityType": "User",
    "nonce": "0x40a841bb70ba2cee5e5d25caea56e60284d8fe4cb6921ab1f704527236c87bee",
    "signature": "0xf33dcdb16c06bdb0ed7bcf952ecf3ef84a806ad578dcfc708245d58d48a1d5723c9a5e446c653e61af2f0385bdd0fa1420d8f45a84aef9d87be9decc229c54781b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}