{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "422886157",
    "entityType": "User",
    "nonce": "0xebd53d0f04a3bbb13b34b5e852ae7d7dd07ff45c0ec0933060db416fc422e1a0",
    "signature": "0x943fc40707969478c96f56fe4aeb6ea4a69d18882103e19075495ba7f0e27fbf2c1651e8c054e130fa99022cb65f2b012ecda461b9284155da3686c9eee498561b",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}