{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16782",
    "entityType": "User",
    "nonce": "0xd4fcc18ad0eb2bcad459dc35bf5362f76d49bd72d99506367bd586c34ee4cf6a",
    "signature": "0x3fab507cca767353d6709328008a3c596c3f8e8fa5e33a4b8488c37e3204d7946e9ac168ac3ba1c59a81af6faad311c77d9c5b43c723d561b055e43f0fc7ac0d1c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}