{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66632",
    "entityType": "User",
    "nonce": "0x6b17a2ffb9c5055769b12569ec33469d310404694ca950b4d3c2e045ca76dba3",
    "signature": "0x2434d1251cd5c5c0c9a24948e85662d8ebe691e9b02aee74b8cfcb907904b79942d86521601f9b4fe9a07443e53784559b3293256c2c621b0157d9036192278f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}