{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaef2704131f14771b1af87ca952773cbe5347cdcfa0c9819abcf9e56e276652b",
    "signature": "0xf5702ce2261ca4673e6002f6105b3aefaa78f8bd508bf35866a91dd69509a16a2ec52cb233065a6425ff734aa163d14611123d4c342b8436f4e63a69b342899c1c",
    "signer": "0x614Be948AC93c9908d944Ec68fc9EC45162c5fAF",
    "userId": "693215354"
  }
}