{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x88cd2440ecbc044c870e2bed2be45866d53b0f5663502309e49e9b25c5719af2",
    "signature": "0xf84aeae6c65fad77ef6fc5e2e34cbb69c63242c792e7b1dfce136c197f07377a4e5a6ad405cd113c6b72a92f203f69659bc05ffca0ed033a84d1ea38875145e11b",
    "signer": "0xe4c2298ACE4151A9700662c2A228EEC7735F27cb",
    "userId": "375150907"
  }
}