{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991821949",
    "entityType": "User",
    "nonce": "0x822c54576a3dd8c82de23ce50e835c1a5fadd5c157b64d654f309034f9abb19f",
    "signature": "0x5e17e6dba85df4f67a548895abbd041bb4fd78c2c2bd59db97585a91518e19d618aa88a9675b497d0c7f04eb97ff80301f269648cb90fcfb17110286540e185d1c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}