{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0a07341226ba458bcdae637c57ba9f94bd98c490b86b89e444efa18a3966e943",
    "signature": "0x83bdcf28d21645d8407b647c4be8742e842de40ea34fcbdda7f3f59f5342708d46af98c4d70a8dcb1e572dfa9f992bc4c25daa9f4bc90ac0b46ac9127df23dff1b",
    "signer": "0xba8641093D46591A527082dC8064445CBFc9215B",
    "userId": "943343792"
  }
}