{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115421",
    "entityType": "User",
    "nonce": "0xb2d18e75a6349eebd3b5b81e5a9e7917eab4e0123b6a88660e9feb1e802d80c0",
    "signature": "0x30b927e08a2e3dad92b841c9289f8c173a3931945e01f084a26330b6cd792d7b2e28839c46ebfb6a680672f9183e5fee3c42cc325e68ff170fedc053bd54fc3c1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}