{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303081",
    "entityType": "User",
    "nonce": "0xde505580e79412a5493e1d267e4551c7b45194f040ba7d9199da2ff42e46f997",
    "signature": "0x6a1f00dd11160a44ed9450e225cd915829644562e647a7d762e7dfc1067a6c34143cb8785862c7934181e256604ad27dac52d51fbd1cce63e272ca04cc49d6361c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}