{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15620",
    "entityType": "User",
    "nonce": "0xb2f4d0056ceca46837cc90f4ac66ae0c243b3ba1e7b10e5c622baa53bb174618",
    "signature": "0x013aaf0e8dc1a9e6fd9010578f51d26bde036989b041eefbd450f7857630fae165cc1d1d07d33373ad5f0d14b1f5dde1cc7a150bc6d595263632a47dc358efa21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}