{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "449938034",
    "entityType": "User",
    "nonce": "0x2c5ea51ecd248a22139b4817671559c034b7ff9122fa4efd33aff7a6218cea5a",
    "signature": "0x116d3c8f464b3bb5dd3ff3296fa39794b191364a16cae36f2ee1faad3bee57f64274bd5041a48849ec01517a43d77299bc03a4c7e579fb19ec106c60b19f3b691c",
    "signer": "0x03e9Caf2aeac5a0F0e4Be56410d67A4148D38Fd4",
    "userId": "47828528"
  }
}