{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc779b7a70ed2f09a6215f088a510a8b58c4a96b2dabf29c3156ce57b405525a",
    "signature": "0xb22ad442aeeb7e84df76ee3615e51bbe4bc112ce51c77b2a58b4eaf1e34a93c32edc8e8b37cc8aba8782bf247845e5354aaa1fbc16922c0424fc4670f53566551b",
    "signer": "0xeEd2A280C6ADbecba7470EB5460Ff98E4e7cdEA2",
    "userId": "297600724"
  }
}