{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299717217",
    "entityType": "User",
    "nonce": "0x83ee633d971ad56d389958351260da8ac9873e8ac4efdf5e3a525dd929672d33",
    "signature": "0x13676222bf7f4f73a41c9335cc873095f96257adb6c1b81697b44b6d5aa6b9894772306ab1d5db3c6ccc434e29dc76654a45b8bdeb7082a64c8703e4bd5432ee1c",
    "signer": "0xF7F56DF4D8a2Ae2BF9Ca645DC684f84c37BbDaFe",
    "userId": "116272245"
  }
}