{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387832",
    "entityType": "User",
    "nonce": "0x63800dd0aa975e2ab3e733886f89ed97a87e72d54973ea25512a00a23ddfa218",
    "signature": "0x049e4b008adafc7384f06de813a1837cd0658cfb270e32406cd4df839d04dfa42305c278b8b29c3f4028a8365277fb44e2e030ed42ee89d99cf6426c5d698bc61c",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}