{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666092734",
    "entityType": "User",
    "nonce": "0x01d7dba1b4a8c73340e34d4b866a7ebd387fe5b672df3f03880374729d32bd6e",
    "signature": "0x8c9751c047cd58be31b9126081a9aa5f8977fbb13edf5dd6a46617c81f31a1426c46a12fa86395c1604d7263db3c33911df26644c17232c8dd88fb4c69728adc1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}