{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x18caaa66b61685ef08d7189f695ef91a0b75daf1b43646fc116206a35d9a1527",
    "signature": "0x17b7d963211fa62a4b359c3c2201ed42095545422c7b7afbf48c7583b45656316ec39292cdfb38ffcbf7c024899d4dc4c11291b5a450a9325c11e457ee738a001b",
    "signer": "0x4c1DFcD6d9b7FEa332f340d9D6F32bfb8b236548",
    "userId": "994795871"
  }
}