{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "378693",
    "entityType": "User",
    "nonce": "0xf13b58eafcf539f44386c9a250c94f75bf5be43097f8f29e19aa5eb3956c0255",
    "signature": "0x1afb70e9375c7b8a6bae9f09423249971abafec453fa7aeec00bbfc185ebbe9a7c2c35fe279f3ef4c673db378c84f3e88909d5f2073c220863d586d6e64f17361c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}