{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe89d1dab8c6e15b34f0c39c2d401ddc0f996f80eb5b8c4dcd263d09c6b1bea80",
    "signature": "0x49cc75318032a1104b038710d26f2f7ac97aca1ccb940111a7f0ffa0ba4206346a93839d5ed2953d0577d2e6d731de77af90f4ce8dfa528d5c697ad433e8563a1c",
    "signer": "0x21198aA949A873f1DA666C84494858c09D2914e2",
    "userId": "596794655"
  }
}