{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416239376",
    "entityType": "User",
    "nonce": "0x924bb75e5838f7b8127e2a4c66eeb39b633803f0728212fcb3d94ed424486984",
    "signature": "0x727e6017d319fc2f0e833fb2f102d04196a31e0ad26fa081fa62703098f432be2cdf1a9e3067b91ec2c2817a7ae2255e02ba478b52f09119e1024c5e39ca1a611c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}