{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "293976821",
    "entityType": "User",
    "nonce": "0x800fb0341c6b69c41ca23bc557dc02b31ce570843ebb965fc460ea95629073c9",
    "signature": "0xe320c21a934ab5ae4c21bd4f22bccab0514781f20bbae91c6656d6773b2ed5cb65e3936cc3884a34f9d49d5993f074e042379dab1607a6e3674c05101459746e1b",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}