{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187530",
    "entityType": "User",
    "nonce": "0x2f9d326fc52e31ae4681d4c571fb473ff3c68968b526b3d63c64fcb1fab1ea00",
    "signature": "0xd9b0bbf00d20136d44988cbcda49da594349440772e3477b4cf4ac368deecbb146e6da88c8cb3a1bb3f11cb6d9a7fc94fac516b39b58bce13a64a9961df33d991b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}