{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75343",
    "entityType": "User",
    "nonce": "0x1b0e5f0b6f40c6fce10b1ecc4fc3b0eae6701954874fc9332a22797cf8954b06",
    "signature": "0xb17b250651500cd64d46ed1580a187da8b96875f73fd9c3c9051b85de422345c522fcd70d53e7bbf9c61ab8fcb5d3ea6884ea55d047b96c79c0879e5b0868d111b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}