{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1a9ac2c7cf0324a198cf352d0ae669c019eb6b45ed2bc53d908db3b986d99abf",
    "signature": "0xb1ebde712658cc488ed04e79bb1437777670278ab4f2b3c291ddc2d9faa61fee1a7d4362b8620d8d743ec3e064740bd244684791d59e351c50beee5d85a074011b",
    "signer": "0xE10fc55c02FAEC6dF5dd7834e2C0b691a8Cf0802",
    "userId": "349850192"
  }
}