{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224945",
    "entityType": "User",
    "nonce": "0x9e7839a24121f9dfa2b9c411c3dbb69e8751fe5f3cc3e3a03afca4431d7524bc",
    "signature": "0x5b7def29286f2b1129c06c4f633b8a8e7bac58ae992a4ddfc804681a279ef15321e69944b32b006e4857ba32b03ad483e653ec2ef57f8afd279aa3eab3d3a4b11c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}