{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157919",
    "entityType": "User",
    "nonce": "0x5050f1ceb66dee596077745f229dd274603e994bc9758671990477d69acfa6e0",
    "signature": "0xb4a6b7753075f571c90618ab09ed9364f1d17adc6930756f4ee173af11edc9de3adfbf5d8079dd08378a7127c98bfb732493c8ebaa05b7b3956ddee88520a32a1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}