{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326088",
    "entityType": "User",
    "nonce": "0xb5146fcfa25d44b3b2f6d161426f5e682119651af11a2421e0e498775dd3f7e6",
    "signature": "0x3bdba0e2f02639c27dc1a7f7de90bf564ff5881335a201c2ce8ccec2e40e8b3f160c6b8dc09402eb77018d5a3d14d2aea24f34432f3a943b75d22ed6055ea7261c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}