{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870268254",
    "entityType": "User",
    "nonce": "0xc8badf0f4026175d5ca3fd52b1393813d084f5cd23c52f257edabdac2a33e786",
    "signature": "0x6d30bd165705c817bcca0181424b21516c57c2ee93bf74a42195b774a6083f8166e3c08605b3314077ab8bc207c2ca7667d8f6c2e2a1993a9f3d5d11a5ea28a51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}