{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1674010",
    "entityType": "User",
    "nonce": "0xbc4324e40fad74f9c6e46ed2db32328364a721b1f7bd52f509d2cb5c8ce79c84",
    "signature": "0xc202cae34d1c761a9aeffa0dc29f1f75c0631b0bb7fa4edec8a25c2f6b5af099405f1b1a5f857ae150156c9e3ca46fa49b7c27ffd0568696627511518243ac9f1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}