{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42601",
    "entityType": "User",
    "nonce": "0x86e15d1da9d6426377f954b3b4388ca0d8ba71f387f8750c2fa465daaaa74ea2",
    "signature": "0x285c6e2832013d411d49c6d26e20575fa90d785ac3a32c0a5459177aa0e902195070896b667e2003e0ec7cc34d11ff781d43b2fbf9e77cbb3f4582df831368bd1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}