{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "440432626",
    "entityType": "User",
    "nonce": "0x01dc4237e847e19fef32c6a4db8564baf4d445988b6536dee6c575416f934654",
    "signature": "0xa0cbef530817966705fdc16668853834fe69102200014488f6d7c957bd6f940d1b7b5f9eeebe6a57dda93877ffaea5a285581aee93898ecc7b0f18e3e26b86581c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}