{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdb8f75a35dc2aa6dbcefce7eb425c9c7e6ebf6544bea60c1f4e33b241b0e275a",
    "signature": "0xae3b51bea0789b76846d3658b366c7817bd7ff49f5bccb07e0670e79330d24c9443a264db80e80fcb39f169f1d896294cff4a0357129005fc7fc18eb0c2686d41b",
    "signer": "0x1322eC43Ddc0F01bB0881e703cC07F8e144b94a9",
    "userId": "828844906"
  }
}