{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137691",
    "entityType": "User",
    "nonce": "0x1289dd361cbb1b5fdc9484383bd18d4e860929562f0cec9c96e5032961b649f9",
    "signature": "0xf2df06df01cf528de24705b93c0e747bf7a13c73a7fd910e4f7c592bc239bf2270f5bf75244cc1b0f00bf4429020648fd8569cbef894bc7ff042e87a4957400b1b",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}