{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0xe603be6ede11ea7af200d733b7279949f27221825ca097b5054defb243dd26db",
    "signature": "0xea4b637625f4b2574ba9f883970f65c17cdb037ed07dace4c3bead9e5f1f01b148cb41801991aebae4b67afb13db7857ddaeb30b409c01498a467141c4c4fbad1b",
    "signer": "0xbA83b3D0645C0C99c76cB296B0BA81bD641DB81c",
    "userId": "951995708"
  }
}