{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1040",
    "entityType": "User",
    "nonce": "0x7bad829045155f7d2dc14762244ff814d4880e26320d9a7c99a24d6bb9965e78",
    "signature": "0x92fd58b5f07eb8f8bb2d64f3e6518a187a329528769db98f468a61097c18583c4bf4001eda36ec8af414742a560f9d59a8818e65d192f9067998d1834bb3b9fc1c",
    "signer": "0xb90dea25446900B58b936FB95262D7557e6115B7",
    "userId": "559908939"
  }
}