{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298654375",
    "entityType": "User",
    "nonce": "0x63eafa943d4929176c7f31d3091c92328d3e69ec4b06ecf3de96b22834f4c32f",
    "signature": "0x8f8b4b10f9669a114a02ee3a6c6493c49cf7386265cfd5fb66fc74e4b6b6a98664998a93cc42e493f2a1d789e35c19738714f59cc31fc2333c425edd05442bbb1b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}