{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xdd5804f65e74a3d80c8a9b910ef5d3b6a831586cd627acf3268ac18930e93d5e",
    "signature": "0x7620dbe7a350bfdd3c1f93cad05560525f4c9827b33174521122beb2dcb30ae821d0dc3e4e041b63145255c65215edba9fcc304595ea54fde693b2b1475516b61c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}