{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xf1d93a91cc5a2212e501a8008f388e3a71e6ed118d51c10594fe7222f951bf7a",
    "signature": "0x38cb08568cced7bc129e7e3d7b42b5cad4231deb391f37dd4fd70cc5021a6fe4638c4b0c1f44575c435f6a176e4195605f42236bc195121dbb3cc902c64b8beb1c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}