{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x885c43f9606dc598d98fd434cc802eab4203f0c8a16d8f96f388bb2cebce66c6",
    "signature": "0x9c5da6e1769a3797deb122d323774b676d48ccddc0acc185d96a5fc5e2762af36c8dc3f558173a899e4287ab4e420a45f69405259d10cabce66dc99377ccba461b",
    "signer": "0x89715A6F0c23C84cE71166083899D25bE26BfBC1",
    "userId": "952196459"
  }
}