{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1722125",
    "entityType": "User",
    "nonce": "0xf77769e5bea43e67f40a3d05fd0ae19c56da2bcaa8dd78b9d2af93c327f16d3b",
    "signature": "0x31b388a8d66258bdc8ff9dc90479e23463ed44999084af31eb7e6de26116f9a41031a847ef4a13cfd0ad47c16353a2fc4da99da0070c5add717329a0c47619601c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}