{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146690675",
    "entityType": "User",
    "nonce": "0x151e1898f7d838c73a568f32c731265b1e10e284a11b59e230521f4e0f6bde52",
    "signature": "0x7dc29457abe2caa7131f7f17389b1ea9a78306d3e219caa4276d0fee104f4e872ad7135a337800a7bf69d8da796ca77336b54fb3cd0e474d55bcf07c059abe121b",
    "signer": "0xE043895C8FfD2B49bac2344cB728935E7B4f61Ee",
    "userId": "777109830"
  }
}