{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62021",
    "entityType": "User",
    "nonce": "0xf29280bde8dc1d9aada26c243f5d0add64308b404dd7bfa4b6636bb4eb8ec230",
    "signature": "0x3bc4e78c93684a1dff88dc95b708637d7a14c87acf7037678e677cfac982bf495c0aad953c69bd53ee43ba84c3e90add093545b418d43c7e6c12729f66a71dae1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}