{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x630d0e752dffcb32377c4ae019a7a9dd8e2dd859cf01062664c6f426d00cc3f5",
    "signature": "0xba850f4672b517e4fc0ff2144d6b911a7ba8df2b66b68af24c326c34fda6a82e5e4104c392a6b10c7749291ccd2f8a71fa2f180fef921147886986705c2d5c8e1c",
    "signer": "0xD0B8E5Ef0e0C680A9E0304f93D48bB17a6b47C21",
    "userId": "126004624"
  }
}