{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120773",
    "entityType": "User",
    "nonce": "0xe628510689f4df37a0e1e45994d970e6e6afff20a028ca07fdef1e1a424ea164",
    "signature": "0x4e1bd655efec7584fc580b7a94f018f89240a6de9e40056ca2f8bc6fd4e3659575cf62637004009912f89da824b1cc9b9c820cfa402319c528046bf33065edc01b",
    "signer": "0x38b7AB9474A04dF6f214127Fdf6c1ADaADF5926E",
    "userId": "571039733"
  }
}