{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "418825",
    "entityType": "User",
    "nonce": "0x2800cd7d5b22ebf06d939359b74d1eabd90ae249987cf95cb52d1068b849d841",
    "signature": "0xa8168b8f4bca666563189515d0323fe225cfa5690ae993d2e72842884a6e38c6653c9edd6b0783e77e381626e50b43a9b2f5d97c655c9d11ef24143dbfee13471b",
    "signer": "0xEc72875D6D54b0e814B9d69860bfCc1226174B5b",
    "userId": "209804791"
  }
}