{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75085",
    "entityType": "User",
    "nonce": "0xb7fd8eebc6cafb39aa1360cf75e5fe3a831220d43b09ec301ee243aa2db5c488",
    "signature": "0xe3be0a81aa2558e0e5473fc2bef5db2717790cf41a6b78eb7b01bab88b4d4b413e3d024a25f6e784ac8fc8ab13a191196e4d8596726b9192ff4a9b1d8f8492c31c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}