{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfbffac5c2b7330f551c5ee09a563690e967ea50af395a17562bacc96337df98c",
    "signature": "0x8ca821800db7b9711c2e2d91290dea8f5afdaefd32b4c5d896012009b94fa9df675d1fbe5da128df7544f2c18cd28eeedb0a8b9cbcd3ba274aeea758632801d71c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}