{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212611",
    "entityType": "User",
    "nonce": "0xdfee886fb5bf9d651570d4e31335d8f339946e46b3b096d68c4c4382ec38666c",
    "signature": "0xc7db80ea7ce672ad05f09a104c7b821d62b410dfc89402b73a3aecaf6794866e31374d1806fd5bb21f1040ad828c6da14f18873f3010fdd9e915e874fa422f751b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}