{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54858",
    "entityType": "User",
    "nonce": "0x869d5f2d3f549fca95387c16f55b97182f6881930dd3e08b3b73d5d1d787b69e",
    "signature": "0x157d726cf0072395affff39237edba9dc209b5d434aaf743bd9a8d865459b62139c79bbdfb05964ae9dc2e99c727de2ac0aa8e71520ab4f0fe83aae74441f9ff1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}