{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "960588283",
    "entityType": "User",
    "nonce": "0xc4010b45193accb4389cfc3223b254fc678769e21354c0413a3e5135b313e4f9",
    "signature": "0xbeda90a8b294df41b10c34f309ee71025a6c6d1fd3eea13f334fd2fa0c4c9f9446c6f8c89bcaa88cb3ec71182341ce3019a112c33ae31ab0d9c8b4f0a96bb0901b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}