{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16347",
    "entityType": "User",
    "nonce": "0x176ab9504ae7f3caa5e1ed724c725eb68cabc25b30c3695754437388cb11f125",
    "signature": "0x0f3ba86cf42104ae3237f7adb7fa5633f2b389685c809d844ca0c3d5a413f9865d760029bf29028084e69b8d7389b186de820c2972b0bba6cc5aa6894484bb441b",
    "signer": "0x451d1Fcc610ac6c427d570E73Cb3641Acfa23b6b",
    "userId": "134623867"
  }
}