{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "592353919",
    "entityType": "User",
    "nonce": "0x57eb96a78fbd1c7288a386f0531abb7b223d322d7a3fa4b0f5082fe212fd46a0",
    "signature": "0xc0518fdb329dcd3f490fc3161bfbd77fbe81be64e287e194480dc548597e7932081fff5bfdd0ccb2cbc1aaeac543621950982805bd5e3d6363c76e2b9d0835ed1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}