{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148833795",
    "entityType": "User",
    "nonce": "0x4f7d3d899c548aab55567d9048720a3e863a06cecbc241f72191bc31a0f72deb",
    "signature": "0x9dc7037991b3e22086422e44ed77c383b76c0edf773d5aa9db708d77d03bf0c336a5375f9bc8b4ce1887a485b875be918d3ab74678641d611f2956f31b54c44c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}