{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89210",
    "entityType": "User",
    "nonce": "0xa1b05764d0b46e8b1090acebea6ed7424a69936580e04672e001a48491df9a01",
    "signature": "0xff5bdf774ad5ee4f3bafd290d713e77368df33dbd7ff827a81b5a9283b274cc94caad96061dfc1c3ccb4fab17e80e0ae5142fcb170a0d5465bc7bb9b836bf9a61c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}