{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xf632476b1592b6beaec71690074087f54ac180a9e592c6f08f756b7cdeb2ef37",
    "signature": "0x7a4bab0ed2690f9227456bc48ad083eb410a82f347119de9344e82beaaef293d7d5aff1b2b63873de19d8d29d04e5f186a6fe05ad7440caede01add68902aa621c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}