{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76873",
    "entityType": "User",
    "nonce": "0x24541ec545cd5dba3741b0950f48e18235b92be3130a62fb12e44ba4765449a0",
    "signature": "0x5c3c329c12aad2c34751b4d19977298b7a1d3eb8c6ae592260fc1c6c502c126a03b33725595415368b441cc3603dfc41f52da3622dbffb42a8b01c46b8eb23cf1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}