{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "442238",
    "entityType": "User",
    "nonce": "0xaf84503bda693c7bee7d5430a40a21b2de463c3b09797b283fb2e85ddef06a1a",
    "signature": "0x88d87270a7a2891fc2a140c3fdbebfcbf55fdd7bd2640fb0ee1221af899b97f5360b32095d48398173cbce14e4ab203143b656a6b88eec3dc2f28cb9230be5171b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}