{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943839579",
    "entityType": "User",
    "nonce": "0xaeff71d25ad7ed7d9031cc301aca07e8abcf6b0782f18bfe90e8cf4e4cff94fc",
    "signature": "0x842f4722ef57bd251178d975091272316afdd39257d0853cf355544dd60f20cd213b0f9ac18aaa83bd9b1df6eb7056ac62dd326e78a8ca601adb3de9db5a2e681c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}