{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa2bca2b6dcc379333c5bcb4a08b7b35959b7990184c268ec17c845fdb8dd3360",
    "signature": "0xc097f4f8cc815b3cd991a7f3851b61c831332e1d1a980c54e056f1fa27402e6078e6f4d48b77040fc1406f8fa6fe384bdcb991f46c87b2c24e23f8a99a23946a1c",
    "signer": "0x213697efF59e0eb4ce75257956a4F693e56C9E3d",
    "userId": "63348449"
  }
}