{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x97fe72f5f64a6e829a5c9a71c4b3ae6ae2a1bfda0d1e51b101ae412852b8de48",
    "signature": "0xb1935d83f23701fa3ab3b03ff6ccf107483aa6e9fe3d6099409dbfffca9b78d72f8720ec32d37ecb8548a155281f0c0d41c0fcc97f0b90c145aec7140ca12f861b",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}