{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "534459102",
    "entityType": "User",
    "nonce": "0x1db594de51f2bd6a626953875c2559aba02bf077e923073e8d15dc1ea5b6b1bf",
    "signature": "0xebcb13ca8b584f2719eeccf4ac3fe67963d6b4ad6c12de4c180a7e3efd0ba1012fcc4b66b99d960854858ab503e69507caac2e681fe6fd251f4576542f2c33dc1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}