{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159467",
    "entityType": "User",
    "nonce": "0xea4c90571c3486fe5e69d7688b7efefdaa86b3209653f9bf700b708c769162d6",
    "signature": "0xfec894e764758be6865da22f98266d65a5a31edb3306e4a963d80f590fa425d3193279541be1d029374037df22a79876d93bc5666adba3807687fe29d64feb781b",
    "signer": "0x03803b915E0AAee5C2c5aA3510FCc5b4DBb0FF46",
    "userId": "629975650"
  }
}