{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "534",
    "entityType": "User",
    "nonce": "0xee29fdec49cb8867c7ff7c565bcf91932b2df93b26a99bdd70e89c7cf7e1fbfa",
    "signature": "0x0f0d42cc28c026d3f2e448e447ccaf2b8ceccbe4f6e1e5a5241f11778535a1550447ee791c45ac012edd5d4dbceaeaaaaa9a177b876abca95003addc889418d11c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}