{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71103",
    "entityType": "User",
    "nonce": "0x14590b54a0e6d258bbd4b1a85a0a8770e08f5ffb6ad49112f12af4ca15b676ec",
    "signature": "0x1fbf915ebd301ecfaccb9b598a7c7fb6539ea5547f73a78644b932bea0e92cfa41dbbe9656ff3f35b39495f9e2c5ef3499459d1a4e39e1099afd648ea10ba0841c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}