{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377242874",
    "entityType": "User",
    "nonce": "0x227e83613898c40084685cc0be1588602cad92c832e36d7b470dc0a7635bcea8",
    "signature": "0xb56e462da753b98c5f1fc8f270cbc0b129829c3d189aa7ce0b9e4db8a3ea9f513a2a9086b5aa2f1696fb363f3f41ff86d6f2666acd5d71812362e7d1c7e69b0f1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}