{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x839fd43bf94f6c18b69005d1c8f7484eca7e0e15fa731adfd831355074fa46a3",
    "signature": "0x09234c3b96ae291a22005ee12316a028b5fa85ff052ba5605eaa6ade6b1ebd306715f2006381713e147c01657d61047ec2c2694c3f5d7d75fd2f757851462f411b",
    "signer": "0x2Ce5541185e6821Ec88948FCB0CB0C207Ab1bB31",
    "userId": "232802248"
  }
}