{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64649975",
    "entityType": "User",
    "nonce": "0xd3ceb6ad08f5b05a6b4a8d6586c19c42daac2c538b34c6c58d294290a772c862",
    "signature": "0xf428a505db37fd97e4ea508e200d62beee0e7fc52747870fc20ed9eeb6d134c9406bfe72f5cfca10fbabc287eb6ef4dbe861495ad7a849a7f3eb6129c9e753c11c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}