{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1315944",
    "entityType": "User",
    "nonce": "0x5614ebcbab1d2bed95a311dd5f39b0fa6079d589140e359875f4e3a30bc8aeb8",
    "signature": "0x7a949525e1652f27ab0b9bf22b377540226774d9daaff2048f66ee16f2db77f8611e9431ed971d3b23cc0cca13af2cd18b67bba3981526794cefd80e7b8658cd1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}