{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138452",
    "entityType": "User",
    "nonce": "0x7a2634e13c473319f937e902781503497f1bfb7a6b3dbf19079441c26335c891",
    "signature": "0x5e2dde21e3e11f33b59b5c596d98d8adbb720d1f02288b54e5cb82e2057f71920a98a0ce39ba0ed82a2fc5cbede0b3957c744879272c8bf1ea1f9e8c1d0469671b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}