{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "426986822",
    "entityType": "User",
    "nonce": "0x4404068ff4ad91f6925716c12c5ffe90db7ff0a68f5e116e7b2840eee29597c7",
    "signature": "0xec38cc93286d3f25dae2651ca1eae0af0138d0e26669925f8539ae54cf5d02873635aa1643dd07478d90698b885a6f322837d14fc42996bb90866aa6cadd43931b",
    "signer": "0xE23f3feF05A8b5A1991dA4BB9D64B45C529C8685",
    "userId": "231290431"
  }
}