{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2812",
    "entityType": "User",
    "nonce": "0xd1e5c763e0ca5d5a0c45961179bbf518042643d489ab7404fc9772fdd5c881be",
    "signature": "0xb7c5682cf1a4d08b602697e4484f7c567f4c10d644d6bb8267fe87d8b0a801560c96030900c3a3d49ed3816d8ad23a37233aca60005b9fca01d25f4ad044011d1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}