{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951358609",
    "entityType": "User",
    "nonce": "0x82a8d06bc6afe3cebaef7d9974bba8a31fe33a843bb99fac6c103c70f26ef3c5",
    "signature": "0x760c3653f95b10adbdc2671f0d7acf245ddfeedd125a0b050b161cbd05d0346a56b6fcda3eb58eb3965b941b2cc85b2b448755a5b41ca4895d3c0b05e39250d21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}