{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x83337a85753afafecfa91198a3b6468923fc74638f13da89cb0a47740da017a9",
    "signature": "0x775e3a662a625b0ca9a5689fec4b60033bfc96ace73959069872d70c8ae4c8fa24e3619a4348fc4e9dd0a4a18b5db2a59cd68cb8f0f4d5b0c9469f5f8a4c8a2b1c",
    "signer": "0x81a82c2126e99E88D939ca7e1FCD1AE9bE314Bd9",
    "userId": "778996640"
  }
}