{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xaed181fe4bd91b51976e43f80bb010d27184843777a9e0bb1b800aff61863c3f",
    "signature": "0xa7c093a94d6d3816c1c30eec4b372ace1fb694767ffcb4cf2a5289a77cea80c84ce2eb16cd86dbd40faf3e747714caf52eb35ab34981e849065ce762d0abb0581b",
    "signer": "0x16D3bf5a80bAfFB2f1550d49b1203D4CA532DA1C",
    "userId": "1994482"
  }
}