{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0xc22fcebd779d06c1e2ed592859523ba4d8448ddd19fb622602206d6ba038df74",
    "signature": "0x9e64f8b1a468364e2b0dd55c8b867e4755ec966f11ada2e46d81ec309d5b9c12305c44558ca452b8383b51f6f2b6abe938457c60a5b713b70fd274c5580a82e31c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}