{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x70cceed8f8f78437bbe3b883fb4f9c850df498a6f1a9750034681754235576ea",
    "signature": "0x519fb8b6d07a1dbce7096088fab451731c0d406023067218563f17c3d4452c7815b9b12a197af48484f00c9d0e99924e4697a40ab5620ecc511bd276742145691c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}