{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2d2a48efd8483d6de5910ffe41b4e57895f6797bf9f65dcf4a6b97575ced916c",
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    "signer": "0xB56D853E936fF5c61f93D1f54D189DdDf0cad807",
    "userId": "622039938"
  }
}