{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222755389",
    "entityType": "User",
    "nonce": "0x74b0c36916b5d82f64c44fec0a85ace8c1422967d8055ae211bccb20e63fe082",
    "signature": "0xc03efc0b9205e28a19eb7634e8f270273f3db2c3600940b03ba9e0a9cfcc4373469f5d4f12b326073c704e043823a923a4eae9f668e7b15ee60fe72334c93ba51c",
    "signer": "0xFEB47814dEd95a50671914Bb6633f3d3cD11BF6D",
    "userId": "178403563"
  }
}