{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x7e065b49144fd6cc269379c602dd4e9445703626334fe34451d46b216bd239f7",
    "signature": "0x10602b1affd024de4652dccdf1b161d85c42b183bec23a6fb43c726d9496843d47ea4c2152e89aa07e6292e6091abb41f3e02805e89b65a7b8c7f0e96ef220061c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}