{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239519",
    "entityType": "User",
    "nonce": "0x357c84ee71bb4f9934294e7f004f1f149bba9c73acb81538668af51709535d14",
    "signature": "0xcd8947781855a91f445ed44723cbf9fc2c78c6aa81a9540449b9d3b626ccb50327dfc3089428c959ac4680180130d88ccdcbca15ad25b16a8a0b9e4c66c6edd41c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}