{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x912e5fe592b78a8be93f1ee409d8fffe1b891ce38a462a608ab33e1b2a1dc60b",
    "signature": "0x8bf9b79a25500a08cbcb4747a27ac0eb7c1ee7ba40efe21e4e45952b2b1b82ef5e46bf53366aee3b8efe10e7de7da08003a63db09687957a75f30ddb790913361c",
    "signer": "0x225af4E1A90C3aC851989a9F637f13bBDBeF3fa8",
    "userId": "17598773"
  }
}