{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x84b807922fbbb05c4f181e694d32f20f5b6b522246cff92362c7998feea8a3ac",
    "signature": "0x172cf7acc380adddb2e3ea12abfd8e64ba7229da9159caa2c7be4bdb1475d1763549822207c75bf74462d093932478c35cc87e5b952b5f9e56cf59cda76b97821b",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}