{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1322149",
    "entityType": "User",
    "nonce": "0x5ddd39a7ad02aabd96ac917a2a34990641b613f9ea951f756ae83b47995d0cf5",
    "signature": "0x75b4812341beaaed408d183c73e696493cca75d1a0f085b02667d11d37072b374d88956d556c945322ff64eefec7a437142d89f8d7e41acf9177dd8c1731f5401c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}