{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "356481",
    "entityType": "User",
    "nonce": "0xe372f8a31bef2684d3fd1caf8ae511569955002c8220c4896afea890f5ee53cb",
    "signature": "0x60e9e438e5c1608c70c901fc067131a8af0e2aaff415aa635e4439bef4fbaaf9585e5da9f56f9e36335b14b5d3c517e93f15701b254ec5bc22714fb92eef5d881c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}