{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1e1d9b8598406a4f08dc0c707c2ac80080de7e3c3592f66210fb97e31f9a9d3a",
    "signature": "0x559ad4d1bf42aa37c628c4d0454590eca5376f3f7e47d788a54083f803c1257920bd8338454094a5591183f264491d069abdc792efdfbc9db3a32037d0f6425e1c",
    "signer": "0x56fA9E296e4bDA512Af78Bc4E510059eA95795aA",
    "userId": "911655475"
  }
}