{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24489d8b99997c9bcc9b8331d065d4c7eed00daa02388b2fdd0216da67de2235",
    "signature": "0x35231093135f6590252282f6c97307e77b08c09b454cf6ff99e2d6d45502904f34f66d0b895c11013d25f3b8c3e131665a23e9c64c049cfa7bd16a1d16b4338b1b",
    "signer": "0x29dD9654B3d2B2A9c85955293Dc665b02B0243AA",
    "userId": "269056327"
  }
}