{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7e3dbd49039fb46ce6d431f0c7bdfd8b6975d1165cac4674d78995fb727e78ab",
    "signature": "0x1844447583730d2326e94301c515d2bc1938548fbe7fdfd068035c8ac06ff1d3185477ae593dfc7730ec0ddae3ef419c8ed2bd5e8e0b547b286bddd5fa525b101b",
    "signer": "0xF7b51CB106169c42649Adfa4D792649E2b3D1902",
    "userId": "282103983"
  }
}