{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "368764",
    "entityType": "User",
    "nonce": "0xc0c402b71ca76afeb1fb209474f88dfcca3d913187f924f8798ed142e91d894c",
    "signature": "0xf72041c58dd8b485f11c5c33b2e887ed3b5e4bed35e9850c67e09fc706ecb3302ee79d3b97a7892b974c1e01fa2b3b14e49ae1e250d9febd83aac6e8a6d3bf1b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}