{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65029729",
    "entityType": "User",
    "nonce": "0x16e61b5146d2bccfde267e4e39fb721fc3d4541f20d469ab26765da287d90cc7",
    "signature": "0x09af84b9c4f519290755c753f07039f416cdf964eca29d84905fddc8357c42800b98f5eeb3c5046ddc5e5c4a5d4e178318795fb52201890ed17c2bcf598cf19b1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}