{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "998685050",
    "entityType": "User",
    "nonce": "0x97a50202e5a692ab1ecd8a4a069ec6968adf09e6fb7b3c884ac3fa070d1e295d",
    "signature": "0x5aae08067454f931098fc493758884ae452650638aaf6beb5fd93fa1c2cd105270f0f3a70c844e8097e11aa707e4f5ada766a5cc5fa74ecb3de5857fae86bd631c",
    "signer": "0x44B5AE4e0b3D944881eff1c5BB76d34A4DbAf120",
    "userId": "349847357"
  }
}