{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871324932",
    "entityType": "User",
    "nonce": "0xbbfc72b50c58f52fa7853a16f7b347c3294e943f99724f9eff6058a6d3824c20",
    "signature": "0xb53011dd30ccd39831c5e5ea5313aaa97965835ddaa39206c29d0f4142fcb6a30d72e4b051d940ecd2d67f597b5d6979cd6cf7a879f757a56841e8abe8d938971c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}