{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0xe8b5511a381699fa1f0f94a3297ddc1c05db3fa9d4ef244e4b731de91fb1e751",
    "signature": "0x59c0b3f8dacba14a48632fe6e4dcd30a13248c97ca70a68ee0c1b49cb1075fe402ad1a74dec69131a559ad7c5be5ace01361a3410ebce9c430465e0865b035d01c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}