{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1927900",
    "entityType": "User",
    "nonce": "0x7b278fee8ddc37b5e082ebdf0152c8bb1f806c889dfcf300e850d59d47e825f2",
    "signature": "0x9458edaf0539ec1516f4a7b6db2595eecaceee0ad98936a41e415cdd9622b88c509d2c7fc3af4d8cde4771472e7977de5008deb1f18dee8bc4d4888e333ca26a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}