{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580681519",
    "entityType": "User",
    "nonce": "0x12777143b3345422d37cf4fa1bafb9725d2d085b77a44fa5991d116a3188aade",
    "signature": "0xc2991da254b38917439a5f5acb4fdebfc84bff0bed999f4640968c62217d642912125bb762fe10f5272ae07790b49f26f5b6b6c4fcd6ef9993a268c9283181ae1c",
    "signer": "0x5A04fdca1d89B7bbE39216f89f7af924D74e59D9",
    "userId": "571572454"
  }
}