{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827803944",
    "entityType": "User",
    "nonce": "0x321b6cc5f49b91788fbec76ae58132322132132f5b05662fa8424352c2e84dec",
    "signature": "0xd39415459a4025a132ccdbad97dd7775d961b0c459ab64501288c83ffcb89ae553de894649b465c9d12575bda83ba4e949f3c24196ab46472565e4b5218391181b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}