{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849776474",
    "entityType": "User",
    "nonce": "0xff5e07eee991d2ceea621622b124943db80e5ff497a84250ca28c714ead285f9",
    "signature": "0xa879c8604662836913f6955104feb76c994c6fb1ca70668792c4093ecc4b0b9a2b2fa72e20995a87b679daf7eda19ddcfe3c8c55b0c37ca6f59004179487ac391b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}