{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214443",
    "entityType": "User",
    "nonce": "0xe13a4eaa271fce34910a60a8e5bd35ea0ede372909af174595b334db6c43f064",
    "signature": "0xc22f2b658995da4a3e6b356755360e1ddb684adcb191c4e9b3a353ff0a74e47177fcc51f4ecc7a753751a0b92c57bc87b65715a92de7ef2765d441ce9be6174d1b",
    "signer": "0x29aF37341ECc995FDD7C5fd1757A5a695244AADC",
    "userId": "113302290"
  }
}