{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111210",
    "entityType": "User",
    "nonce": "0x638d5c2e7aca12704d8649526327817a5059391871a12bd3622e43e1631671bb",
    "signature": "0x07b75c1b93eb76a39c7d5bc6e302b1795e6bd2c40be918a71f77fd0dd7b0f887098e71d728b129bae3517799cae5a3de746cd7af9cbbb6205c0b1f2e46d0af0b1b",
    "signer": "0xCd69C2Cb50a21531a08Db7A8333c51532ea010f0",
    "userId": "837274016"
  }
}