{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228188487",
    "entityType": "User",
    "nonce": "0xbffb14d22114bf74281f1fbb20a49cb157ce0ba251cc25ead87938977fbfc7f2",
    "signature": "0x62406dd3908e4a04e9f395f9d20fe19eafb8e4aeaec194d673449198c4d1ba897770000b64be31c20f305e7dfde99a0080b29e008c3dbb4adf2ec1a119149a681c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}