{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385866220",
    "entityType": "User",
    "nonce": "0x91cd669dd59987ab65ff2c3b0bb489c2efbc8afafed4813c48547965cda8e812",
    "signature": "0xcbe84b85487e4417451506221ccc09467d32345c11faea60245a754f01cd90ac38d88d11d5dd4250ecb3aa345e42f5e51120e7e67d7d4145cac49b3b2d4c6d081c",
    "signer": "0xE23f3feF05A8b5A1991dA4BB9D64B45C529C8685",
    "userId": "231290431"
  }
}