{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x8c8415aef73b72ff7d3714c6d6f0f1dc0a09105d60ea95410c5d9ed31fb3af0d",
    "signature": "0xf27ef66759db84dbcee7ac12175dd38031a134997706f23197ee6c682742efd26a9d71c0cdb37b6bc0b23f41161215f569d8e1ec8ec5b5ca6dbddb5b6ab3c73c1b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}