{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x88031a5161f94fc98ea548e1ce3e79ca1f7c42e297d1d118272385bd991759b7",
    "signature": "0x8144a3ff5f1e42fbcc796ad7305f3e44c4ee8f7c8bc7b117b6fa6c6eda5271cd740e56415f76271296d51351eb53adc8d225d34d123d60df82ca73f19d62067a1c",
    "signer": "0xD24FfFB5C56D31307e1072d8DB324b7742FeF6E0",
    "userId": "882786016"
  }
}