{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "603229311",
    "entityType": "User",
    "nonce": "0xdcfb653fc75b32dba32d33869f0b18a79e5c5de04686d083fd05d1f82752c180",
    "signature": "0x94a6d948f6e17851a86062afad13b00a3e83bc0a7ffc8a3ee85b46683863a68c5fb1abe542099555258594ca06e6d5e863db82725e19428da7bffbd000128b101b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}