{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "751664",
    "entityType": "User",
    "nonce": "0x2d07090c5b116cf1f1fde225d2c4eb559520c4d3ae0b05d1cc4aad783c9abda3",
    "signature": "0x3c2429ab7b1af9b5aed2c30f70627e7b38e4360383a52f4313201c231087188b4c3f319e171555fe1944e5ac6797c3f088382b12a92063767939b96c091c3f931c",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}