{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390365",
    "entityType": "User",
    "nonce": "0xd68581c7f0eb773b76a651aecf663dbcdf6338e3e59946c1650150f30bacd651",
    "signature": "0x2d3a1d348bcc89e6079e0f93475700286cb2bf30e3cd9fa0f039519ea945188307e25d6993e557bef88881daad114719dad420843d1cce5e000b8b6bcfb594db1b",
    "signer": "0xEAE1c756dB1BE2AA6bFD12b24Ec5E1a5dFce3CE1",
    "userId": "324670697"
  }
}