{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x5bb7779aaa09d2c78eedc583eb43e10560cf740274d491bf3235c270b1b3189e",
    "signature": "0x16b22147b350efcd36423fa68500438ba019759f7e016041c51d05549d73c9fd728eb094254d61e75e3b44223047b5182f961db683983aa32534a3d9ea3179601c",
    "signer": "0x67f0DD24C108EB5Da1Bb212489834f2f6912C5B7",
    "userId": "512888028"
  }
}