{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64639",
    "entityType": "User",
    "nonce": "0x65d6f1e53563311b2c03eb4de5469af1c656f00dda4c9aa2ebdec5eba7d1244f",
    "signature": "0x4576883909385b267da0f7e9e14e866d855528a0c4feebc118bb58a73cdeb5a206d013bf8095bfb4d1015b7bc4cd659f5f8648ec57ec9ee385be2d14752b1ee51c",
    "signer": "0xb1706D753BBf0bEd5084443ce266B6E8105167BE",
    "userId": "670186204"
  }
}