{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355715",
    "entityType": "User",
    "nonce": "0x578d68be5200b29b989fcca2bf9f2d3c9fb7c0407d308540ec73f660977b4553",
    "signature": "0x1527dbe3bf9ded9a6d0b602034be18568cda14f23ec31c91cf7ace1e487548c53725792e6064466a79595d6aef9334862f42ada386b51b16f3e376dc4265b7921b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}