{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372172",
    "entityType": "User",
    "nonce": "0x76674a0b5aa73ac291d2c8bc6e278fd3afc978c726ae66bf78c653472dd81925",
    "signature": "0x3b258a836572f4c9fd82043ef503c5e040aded2f9ff13efd70ebc4cef3cc4d967480eb91845ea766d896290466c4fefe766e38a3b4235819817d8be27740b7281b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}