{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320009",
    "entityType": "User",
    "nonce": "0x3fa0e448d11851af50bc05f848ef4d016e932c84aad7dfc7f7375bc53bc88130",
    "signature": "0x6a5b799c83311b9e316a93233f8a8768258fb81b69e879a0271dc9c6762007ad22dfa651009d31471056635846c9533f68be744f9310085420816bdd48a6c5b41b",
    "signer": "0x452136c9843a1ab72B758B9cAb217BEff858Ab77",
    "userId": "825636807"
  }
}