{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "376285",
    "entityType": "User",
    "nonce": "0xb382b93467e706d2e37d317b5c705ec487ec2b26f96978a2869dc3e722c7925b",
    "signature": "0x651561ccaa4e54918f1e2889ec1cd4c7cd0b4e3981846aab38be60cb47a30e773400c6fc8f933fa996aabed002fde35668def757a6b6d67bc59afa1dbb3a42581c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}