{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "824478223",
    "entityType": "User",
    "nonce": "0x2c81e29b73e13be6d4f210a3531f21f9f2d27bcaed227d56389e59a3d4555948",
    "signature": "0x90aa1e06e8df5cd3e6f1cc7046a362afd519fec955922f388821adc3046675064f825bac142621f91a9e270d4160a0f41842be2b5fa9307342401aba5c5ed46b1c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}