{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018276",
    "entityType": "User",
    "nonce": "0x18f5f93b27d81f2a34bd6a5322fcc684edd236b1c49f508ce0e9e3591bf44f4c",
    "signature": "0xee013e26e9d50f1ce4ff0a896b9c5f7263408b741d1735c56208c20c038319e674a73415f9c740ee6f3b9fccce2e277a77e9e5b9f0a98f28384af398e70974e31b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}