{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "779007918",
    "entityType": "User",
    "nonce": "0x6c76ae67ec30646816a556a7b06250348a7fd00392dd60e9c0ff1d4bb8eefdc0",
    "signature": "0xc99b036b6799c910ac1d34cd2e3d57d7331af471ae892e2ab9b5910de5b17f00795b41bf8c4b4af926e79915e8a1ce5fccb08d4f2334e411cfde31bf1ade1fe41b",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}