{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0f48feb809880b1cf73d1c7ebf332652aeeb0e63ec78f0e8a80a42cb5875fb96",
    "signature": "0xb7aa8bfa6b6d5e8c789a94902a288b39fbad39df1211e3fbddc3e3015a4bc52027c2258e49c2abfaad65da04e55e2e7d06e9ab136d585f6f732a1bd79df3352f1c",
    "signer": "0x047c445F23D5411191D7Bbdc5Fb15770e22eeDA3",
    "userId": "17005022"
  }
}