{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "213441",
    "entityType": "User",
    "nonce": "0x32f8ba05b757c7e689023e41aa99cc0b355f4a03d8145a69b536a0767092590a",
    "signature": "0x04385301a3e56cd3be3beec3d2cff803988b1582c99e20d454fa2b77eb0086e2782b58cfb6acdd4e1e3811a2638cab155ec7a5384f694758acc8451d4ac3927c1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}