{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4228",
    "entityType": "User",
    "nonce": "0x13cac51b94491ada8b4b6db956c9c66c7618347a09306c4444895eb1780cd0e9",
    "signature": "0x049099b23eed908c70c29530992da8b0c332c33666f23c20b603e003aaaff79e704fb04784d3a8b6fd5a665cfbc3cff800d3841b3a72e66fdcb31c7946a904811b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}