{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123836",
    "entityType": "User",
    "nonce": "0x03d57adba231ad2797b03f5bd891135b28c6cdda75091ad83594b0601f3d10ef",
    "signature": "0x65d39d955120e8107bbe388cbd8c1f8ea9299044e6a6bd09af1640e284027ed33d35dfcd255ccbdfcbc27fcad6af5f9c4696a4a96dacf1f41e33448cd19cdca61c",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}