{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199910",
    "entityType": "User",
    "nonce": "0xbdb41ef6c0c70f479b967db5b26d2291034288e8a59c1944b5a8a8cb6b677271",
    "signature": "0x9c2d8866f4b454c7f6e95026a07fca78829a3bf6b777f4ee6893d95e03d46d984d130d80642a996696abbcd5a371c5d3b877d157acbd606e427ac2b32b5c0a571b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}