{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0xc917b57bc45c22feb9cf67c0b282edd1e5d61d137b700882044155096cde2bf9",
    "signature": "0x88c4acab2270b1964340f91edb3c997170428d7ce9bcb19b545ddb7f02c97002214d50d45223bea3836f21bac9cd9ead6cbf55c22f5149a0cb3f9d9b64e76c3f1c",
    "signer": "0x96631AE8EE332f8b0A00D0Ff2BCFBEb0092b5dfb",
    "userId": "256491722"
  }
}