{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158343",
    "entityType": "User",
    "nonce": "0x9110fa27bef921f31f8537e151fdf960b85e7fe5c205dc419e3d20c4ce150c32",
    "signature": "0x1788e065c4a5417f54561b2c2044f0e1a329b129fdaecd82f4aa8dcbd203c3ac080b5d2a01146916f0601b1861cea1d76791c6e6e2bcad7e147c694bab2604901b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}