{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "290283513",
    "entityType": "User",
    "nonce": "0xbda0169d9c8ec72cf25f181d7340029a936e990970372956f9857103a7486ee3",
    "signature": "0x524d1d15edc2f8ae0f03e72267d71227d468378f76ae7ebae43740d7bb8e6c45430c0d5c43cb7ae19da6911c620eacc58fb4bc514efb39ebaa7ef090ca410c051c",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}