{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106404",
    "entityType": "User",
    "nonce": "0x4bfd655b5183908c72aeba9691641c52f021dd0333485ca981aaebf57d20dc44",
    "signature": "0x5ca526aa453fc038af97a52dca2e35a422ac9a0b8df3788f580962d1880dc37276977bfe739c8dc7267b774ed1684310c8e96be24381b6ef90179eadd5ac428c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}