{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994613244",
    "entityType": "User",
    "nonce": "0x56f6e5eda8e1080da2988e966381bd80cf4520d02626b43ab98b1f9c3547b2c3",
    "signature": "0x81854939d612501b9047e419224577b5886a89a268dcc8ac79d0e4262517664456f31e956c2b1792a703b61516776f06da357b3db2d635eb2729ba94fe3ed4301c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}