{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xf220c7faf03bd1f90dc9b1b081c698b1cc2c557d877b9285497351de88d24e64",
    "signature": "0x4cd5b1e437b9c660e871f8b7ef98342e06d65946392af5f92ee390fe2ea3eb416007b390c33c7a71320605089a416acc613ea024c36a7ff1b4213e8b300940901b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}