{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0x941e56ace3ef34d4338d325a8d1724f9679386c509b311fd8f1b0d6ced4f1063",
    "signature": "0x2eafe180644564ff3b0ad97a30baa1b1f23f334211e00c1f44de70950026eafe03ab07c225507135c3e20d488b6368e9f61556ea17293db6c4673978b25108ad1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}