{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xfb776b25ef0eb4a2b189af91e2e25405924416818d6e18ea9c3048d9576a5150",
    "signature": "0x3499c7c1921df39dd73e2f8969c7543af932bdf22b97331ae38aa9dbb841a46b39657230f9b250bda9b1b531eb74b61a45b11d6ab7fb7260f8d240fd5a81a71e1b",
    "signer": "0xE5dE1D386bF717Ed8b141c490Ce0ABa4251eE554",
    "userId": "398183274"
  }
}