{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617992566",
    "entityType": "User",
    "nonce": "0x8355b923b010f4cb78efcab7b0f4435c3fabf402f197f485998f51a9d468134e",
    "signature": "0x10631dcc0e628e414e0cd6bb0d0e12f382defda191b1ddb2bbad0bcf48229c672aec9edbab4d43159ff3fcc3375db0e934d95979c51ad3b4330982500fbb15381b",
    "signer": "0xFeA2F48F052cB1BD7DBA7286864B76929A21030F",
    "userId": "444978213"
  }
}