{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3d10429209951bc652ecef243d0992ac4748ac4073ed478de6258236b496d814",
    "signature": "0x2d1fc6763d998341d184d20b29c6524e349d45632a07ce6d3d6b1fa634fabd397e8cf9fb455419db458c4785719bb516808f2bd6e3b5ba441874ad5df53f4e101b",
    "signer": "0x82cA7Df5542CB66161Dd9E12fb343f69580ed64a",
    "userId": "102548476"
  }
}