{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xb0f9106340b4c124f42a80dd693f1b015edf0c1f6e13271ecf6eec42c6d993a4",
    "signature": "0xcea3457476a8f2c96f15ff9161e057323411e6fc5604807602abf989dc7bd1434b12880748323699efedb6793730cc9aecf1e2aca895cc90c754a079d38a59691c",
    "signer": "0x449418feaBA25A39aE410F0c64EB2473D7e608D3",
    "userId": "629879678"
  }
}