{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17152",
    "entityType": "User",
    "nonce": "0xe80bf7cc59d9582acb80609907e410d67dc8500c77d6872c2546db8c5f3e6b9e",
    "signature": "0x3bdd616221bf530ef38505a7b25449d9ed85dfea0d28f8feca7de3324a11661d2ba6dadbddf96887da3cc54b088eac872fd503e08e0bb01a5e1083ee092292571c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}