{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "186415718",
    "entityType": "User",
    "nonce": "0x343919862df4979f6f125546a49e93f5b2ef93c20a02cd0e6a748aaeaf484246",
    "signature": "0x1ba4fa5cb526111103c2e0019980b51eba63e28ce1dca0d524ba793b139356835e14cbb64cffcf8bc503fb0529c1bb133dd393424b08cc544f3b2dc6926402791b",
    "signer": "0x3D8B2928f8C6d3a1605187DacEb37824a527A1cB",
    "userId": "394450"
  }
}