{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x3c18ae26f58b0d3f264f9da543300b1caef9baa8b63b16dfe4243f9861551b2a",
    "signature": "0x77033a703ae3894593972e81cdc147e14ad0d4ca76b185c20a5aae3813ec3b1a0b6adbd6e0a2bb3d787bd8b2eae73201da9db05f07502132436936bcd83e58791c",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}