{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "648443373",
    "entityType": "User",
    "nonce": "0xbe54dbd07b57a29a214536c43d5a2f1014876c09b0112cf6746ff3147c824db5",
    "signature": "0x7555d7dddd0ffad94cd3043cda2693ecd3f700167caec355661775f41e63d15d24c89f7498cc3b0cf0b7d5736fbbf7e2c8a585da77a3bfaad3a38ba95c7b0fd71b",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}