{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "627522830",
    "entityType": "User",
    "nonce": "0x3d1df2555a247257643c346ac25307ec39058c8ca01018ebf2dc1b9523eee112",
    "signature": "0xf79852806b4d1b0d3a23708d556577bf04fe0d27e181cdf0c88260eb192b527a5ec495f11eb9488ca73bbfa708599338b9a5a4e465570a5cc55fef9ac86225b41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}