{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x881d89cfbd94cfbf5fa4028c3560c4a19ccc76b20fa59826a2ef09cfe6b0298c",
    "signature": "0xc3c0ceabb57e0b8b06e6f06e7aa485f1c8288872ace3bd58a7083758f6f92f454be2b15390a7e3e31c22b728167262f4cb12d859a9bb23823e6f7db6002f6f931c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}