{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xba15ec763e02eb654accda0dff220583b10e9d1eee14ed6f2216372ae4f364a4",
    "signature": "0x09e8cff36f22a180b101d65026684ca0e825f374a0224d40f47ab6383a6c5c043d23ec42d71dd0510fca07d7710b83340db6d6ceb99bb5230a8d87605c6160ff1b",
    "signer": "0x3EFFF4df817177c0A8370597a286FB16Cd1DDd9E",
    "userId": "688850395"
  }
}