{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735",
    "entityType": "User",
    "nonce": "0x841d8f2e12a590740e01048950f66c262f12a03df8123e7bb340cbde8dcd190a",
    "signature": "0xd0ab0146e238412c351a8528a27d85e1905d1aee5665a7dd398d3fe1fc8841f5103ebab8e7e6a32b696f273cb6fcc2e516150f28174b38e59e232c333f8019941b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}