{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71103",
    "entityType": "User",
    "nonce": "0x1a438291232faed803f72f60687ec66ecd120bf0ede8ece84518daa29ef271af",
    "signature": "0xf3039ba114ae229f9d51197d3fb11851957009103a74314eb1d80595a6b903252e33a35500a1f99dab38d3f46aec90661ec7a087a21041c7a9ac0660850128e51b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}