{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108164766",
    "entityType": "User",
    "nonce": "0x5162096c67fd864f76dab855d00e548a8ae522ec6da53e1c087b727fa6231b87",
    "signature": "0x14e208bbfeeeaf990fccb92a5e61179cd4fcc57d2c683f9aa2366706c26d4ce32197dd646e30410f2fbfa99ed780c06e4b0ceba4fea7e34a0c02c9b12bd4585a1b",
    "signer": "0x69F642f1FbaFC3710E919da223b90DC0D5eD7a1e",
    "userId": "748581512"
  }
}