{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1938690",
    "entityType": "User",
    "nonce": "0x6b64e32d75e8c2e36d4918e61e3c88af5708d2aba02edb8d9d41fb10d5b5acea",
    "signature": "0xa9ff33158ceefa4f574af3f33a7977b2292d32bf6e994394501b2f39f87d0338700b73d849973836d5008a6962dd53a4ffd79c2ca779748159119248026091ad1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}