{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0xc4e8f0ab82d8a3336b8c513188e7200d04c5ff2eb5c3925eb4bc6affe6baf685",
    "signature": "0xd761741dfb86d7e13610624e923d5f424d115a9fa4449188f96ab9e6d2b6821860af624cd91438af45c3a2be74ded9052b09d9a8e82520de50c305129b3a45f51b",
    "signer": "0x28Bbb53f14b48eE811b10fD56903fc4D922C6902",
    "userId": "625201833"
  }
}