{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d82646e5759f32f2a9d7da769923e432489de1900d018b73012b21639a7daa3",
    "signature": "0x71373ba2d57a9550c997e26e8754005dcc6a5737a7adfc326c8ad65611f8f60b01e71a13cb0e290e1b32d78ecdfda5eff8dc455bd606fd73c81f9418aec5cd791b",
    "signer": "0x008de319cd77e6eCCc31Fb1b504137b4f4f54633",
    "userId": "623043253"
  }
}