{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x614e52fb8df148458b882ae07e4c98da89a6e40da180a4dd37cde900ecc5e9df",
    "signature": "0x2d3d8a7827402a9b2fee363ce9754f0020c8c9d626ea1b29cf11d30198d0c37b225795e9d0bb009e8b4948544c370bdfb0194705c53c23404cf068c5718ba4031c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}