{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x324074a1b680f95aea14f6fdd115e01853efbb24831b1497bc4119a0dc767bc8",
    "signature": "0x0949c5a1376e1b335b3020af2bf35145e575907cdb55a3e4febe4ee9ddf9597746006210dcb51331ac5a47ae309609cbe0580a84bb2962c67d4b0694465b3a631c",
    "signer": "0x9c96F453Bec352b9fB7c25692d528492289601C1",
    "userId": "13351015"
  }
}