{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x44e98d357c3808d377b0bfde9a20d0b7e32fda5c82a04782d7033e314f805e91",
    "signature": "0x747758c82223a3f78f0a2ec4690e0c0ce66bfb9a54c89f5e3b1e80796fbb8e842ccf195e6648f6b1e93e0d2281401945628a724205ab516ae8b1a5ef009d9daa1c",
    "signer": "0x4E936c7100AF594c304cF2137a641919d1FEa2C5",
    "userId": "805151546"
  }
}