{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1930838",
    "entityType": "User",
    "nonce": "0x991edc42cdd862143fb0b7827fd31dd3dc357a2fda82b02182fa19e4dd9b47b6",
    "signature": "0x4f9a3dc5265ed7a287870eea03c80cc8727b639714eff383d5aba50bb944f8910edc3bc92d68660a4743db8ab393c49a632fd518f9bcdd6fa92cb908e780635b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}