{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475275462",
    "entityType": "User",
    "nonce": "0x839159745df25c706a458270bffbc2ee7a6cd75aff2d7c497575cde6d221267a",
    "signature": "0xd9eba20ac58c49b7f86e4a236eaa00dc287024c8d39ed03001716e4b094323cd1e72ae4a05d13a71a63dcdf5e6239a14caf5bbe0489568c9957e270fc331c4021b",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}