{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0x1f2afac222bffe79763db5a83d4e0d628de2540f373b8eafc989d5826a6cf935",
    "signature": "0xf2c4a84e7bc542c3db70227aefe5af95e62a1d36147d87d7d2726c474f136ca942603e4c80f397370a18f4073306b607f5ba0a343c6d703bc9331dfeff9b6fd61b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}