{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67869",
    "entityType": "User",
    "nonce": "0x29862923331dfcb29e06cf20b39913f7c27b55e84788cb8d25d9cf3ff24f5786",
    "signature": "0xa289ac596e6a7bfb9e06a3db5819c09e486fea367772906ad909318a5e5288de28e90b0690f9cf194d104ae44b5e77c008551a651a0f068aa5b08773772ae48b1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}