{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83218",
    "entityType": "User",
    "nonce": "0x2883b0362e86e26c559ffec0251865e8b6bd097292aedcf086bc9804c6d59477",
    "signature": "0x8cce4604a9d5353f3294ceb88bda02da06ff2c35fbb30cb6de54e361daad3f4c2c4b414302d4c0c57a3e2b1caa760c2e847cc585078ca733309cf8cfd03b7ff01b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}