{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665370465",
    "entityType": "User",
    "nonce": "0x44591898cc2312b92f4fa35959979d5f81d795ece335a71aa98c1e3530265eae",
    "signature": "0x420b097808ae372d959b77129551591869e2b3e62012dccc60c274a7a4bba3f307ce724c3e0617a4b0ae23595375ee62a80be53b3ede88d4373d61757cfe54a91c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}