{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2515",
    "entityType": "User",
    "nonce": "0xf2b30d0cc8e439f21c4e87b92b3113018cb55a07c68049bc278ecea65db7d350",
    "signature": "0xecf9bf9bfb7a00affc53b37b345e447241b171495743d11cb5ced0698ec6137f65df7b38c6e9b16cc47237343a5e3bb5fd0c6febb1b0e1e9107bdd850081348f1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}