{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0x3b1f2c5c4a70e4c9d695e58a0120dcf504c803f5d423bbd3ff051bf7bc02a48b",
    "signature": "0x0e8f421ee785a68da4cde070b24a897dded0f1cd0bb0a7e0fff09fc269fc277b6c651d7ef380fe267366677dfe60069b8fcac9afdd6d2738c5b09110873dcdbb1b",
    "signer": "0xb7cfC3e8ADEA33d90F4f4B34f672a1C391955768",
    "userId": "120328"
  }
}