{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1432281",
    "entityType": "User",
    "nonce": "0xd94724d93833b43ff799660285219b365de6a5ee89b6f2e35230f4beee0a7d36",
    "signature": "0x882a4856dab916f9db054c70dd643243e09a0fb7621f2d5c888b13d665588cdc6a01adf323855dc9832ba6334f1e47ee4bc87ac680191078a6a0540845c7d32e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}