{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712641230",
    "entityType": "User",
    "nonce": "0xe7584dce939b947de01f78bcd2e07147a46c1b4cdde52878d9e7c377a074a29c",
    "signature": "0xebcf9940258d13765efa530c49112da4a7db29b641c2688109b413116c7014df3d06cf150784f6459d654b38a670c866876001ab7496eb8f1a86ca8ae055f0511c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}