{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "722721",
    "entityType": "User",
    "nonce": "0x8b7a883c8fe8a3a082efc54044a38624c1b1c517354e999f543aaf166b27402f",
    "signature": "0xe540a8391bd56abc8d2b9e7eac9e9efc3b384ce2ac2b5bfe6a549ddcad0d1d4a044f842008e77bff74a9db4b0753999fba781a0d685ca05ea7c54a042bcbc1ab1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}