{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0fee6bae6f2b3b606edbd9cfa57c15660dc809bcf5230807f9a56160ca545174",
    "signature": "0x29a0ffa93d79ed5e44ff4b81aefe3653c61734c290581975e0db21f5f040a1f931b1517016b2810bcf172aae40f60f5ed2a914964d747e1ea7c9063b486098191c",
    "signer": "0x88F2E82eE6edD74cD45AF551965c0A9F616459D7",
    "userId": "746848896"
  }
}