{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145090",
    "entityType": "User",
    "nonce": "0xee1e50feba95d36217fe41085498d64d4a67f92942a16f7144e16ebd389e3d61",
    "signature": "0x1d9936cfbc32cd92481af5a05c9cc8f41d46ae411ff4118a95c61de3366f13dc2247b7ac9ca6aa8fab6bd6dbea5da6a45796fb6539bad2a0452d9d6fb8aa4dcd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}