{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6598",
    "entityType": "User",
    "nonce": "0x294a3bbf7042426a66cdf84c82ecd43bd488c8798d5340414ef2d5e08aa59791",
    "signature": "0x913400e43b9f13b191e2a8531ec5eaf559ad6c0080190d439126225a9b759401098707372c90a915709024a9f2085fb946cb4e1ce222fdc9c72f218c9815852d1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}