{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166187",
    "entityType": "User",
    "nonce": "0xfd65c8438ff4794cbc550fed905f8a82d53d771bc79c7d9ec70ba6427c97e700",
    "signature": "0xcf40ca1c272f963c20cc1497ded0e4c387c76d8718f38e3b6bd3b0b98d808cb66c15b1e8aaf42abf41e99c1e528a8bfcb601412636549e2f4de31d5db3e4a9e61b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}