{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111768862",
    "entityType": "User",
    "nonce": "0x3bdbbb767ca02216e09c45615710b0a6639157710e51b2deaaee05e98875b8c6",
    "signature": "0x5e5fcf65df6048b6e304630e680cc46c1abaaca3a3e465d2c74967604abb585121019a7c037f1811cee701980410656852422ca262fff1dc0c21de822498752e1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}