{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823639",
    "entityType": "User",
    "nonce": "0xbcf6d4d674284afc6464a7c2071a9fd68dc523a7f8ab42ba5578d2a9f3643130",
    "signature": "0x55ceef7bddf422ce1e8607a376308f4fa714aab3b4c6ef8d68c8b198618e372217b9d75462a7bc71599cf85697422bf21fb53d47b6ef682e691346d974fcd9881c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}