{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319704",
    "entityType": "User",
    "nonce": "0x2a5bceefde93979699241350a4f3e7ec8960c18f55cec1d72281c3521f76a723",
    "signature": "0xfac47f1f84a63b657ee3e13f8c75704b84bcfb7fc669ee4b447c56589c65adac3fa79f3a03a6271b56fb51667f858a6bf57e0c57d85ac21c6a311d22cab5fbe01b",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}