{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40839",
    "entityType": "User",
    "nonce": "0xc708b3a216985cda59f5e64d91919e85d4e0bfd6d2ecdcdf83e7eec23b1cad96",
    "signature": "0x121300576cbf2489e1a1c739c33ae44690e086d746745f33b91d4e15a00a30636ad70faf0c22c67e0be160bdb7541e224bc52c4596c214027eec2f5b8062c5171c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}