{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2671",
    "entityType": "User",
    "nonce": "0x88af9f43f051bbeb5e2c2666eec239dd9ea0792cb7537116f3d4ca32b05941bd",
    "signature": "0x03616f09d5c4bf6003e4d1ff6b6f53930f040f66e41b55b2d908710f540510d50a254656ac987ff530f082f4a09ff8f09b6cc08aa5f2de4927ebbd9e86befd181b",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}