{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0f906c816dbf106213135e3763f26cdcaa4885b998e35bfe56a024b42cba8cdc",
    "signature": "0x0beec097380c84c666f7fd908e5ccc5f8372094206b9d2473ea76e5925a2bccd4069c99d4876b8a3fe5b538f5655286ad17b5258408a1217841d73bec72aced51c",
    "signer": "0xfFeCa83dB8dF528813049668B3F3f8b38017fc4e",
    "userId": "581768610"
  }
}