{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "97654",
    "entityType": "User",
    "nonce": "0x22c778e42988c562cfaff45edc330dd8882e8c92c27878a1a9d1aa312b9b5833",
    "signature": "0x379332dc2d6c4083f663c004ee26c562c8632bbb6debe8752c7c2e9e194f68490279402b81a88faec3be7470353fca5dcfb35a6ed221928ef307bd6adbf3a1a11b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}