{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280208",
    "entityType": "User",
    "nonce": "0x85d17ff437180230a948ac7f389f1fba41398122b5d1342b2f11373abe28775c",
    "signature": "0x1f88c106d804b1a00697cced6e8d09c51711de93b1d24573c4612a8f3e1a228078b55b709b4ddcffaa3ae583500975ca21280230712ca2c68c1cf70cc252ee661c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}