{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "110522",
    "entityType": "User",
    "nonce": "0xce89caf7a7a485dc2ba3f16c15f93ece11983481bfb8c655bd01d6faf69e1340",
    "signature": "0x4e50e291277d0e1df83d5fbd70cc9f275bd622b7eec7e76bf44e0c02cc03b9635ac0aadd7ff772d30f3d4a74d68852b80d9ed1234dc96377407f05b4c6d241f91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}