{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357918",
    "entityType": "User",
    "nonce": "0x264d265de91632166127fb5214b0be4239d9f3bb42f1f9143aa75d6cb0057da8",
    "signature": "0x3d4a7db5874997e351acc9ed266eee36b16fd1f62333ccc99a685f29f672c045186275c534687dfebef592e7d61c0c0898dc7683a0c12618a2cb3364be028ea51b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}