{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1873428",
    "entityType": "User",
    "nonce": "0x4054cfb0028a4c0a2c8bf08ae602c76785db3ad6f2ba6519985ef2df926b31f6",
    "signature": "0x48de5589ba10921583ce8df3e6633e7900e68a0675c4c1f2fd5bdd912bf820d10a96b477c453b742dc99ee1bd7bbe3555ae75703f276807dcff5f53f77d456f81b",
    "signer": "0x3B13b5370f9Abe46b4FAF607242E5bf602E2c8C4",
    "userId": "195900597"
  }
}