{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102308",
    "entityType": "User",
    "nonce": "0x69dffdc4ea4b7fb28ddc80c9c053eff55d34883f1b5c608b0d2aa67566fd25b0",
    "signature": "0x9704fe2c2ed5f62c27a2570946924543107a4d424fd742bce64736123b21a7a42368e121a2a348d6feddf3d32a222a6bd03ea85b48807589bf6943f714f17f3c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}