{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0x2f1bfb7b80cad800a913f66e66e076c027512de85b7e4c9820776c1e5a3b553a",
    "signature": "0x37f4ec4da1f0efb95512aa533472532756b2a7529bc3b2145894d795bd501a764a0677d56f052eb33773a68996c30b3fa3b97538896422c148014aa8a0c5136d1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}