{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1852",
    "entityType": "User",
    "nonce": "0xba1e87e7938bbd140efeaec7e41938871cbc3ae785c1dfb7afa22f549be5e524",
    "signature": "0xbb7713294aaf2049b319a1ab034288a4bc9a83c6468b159085af90ee05de4e124284c80dcf18d4558201b87636f220481dc437a021b1fb2827be406d0104e0e61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}