{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ab7f793c2cfa9a5798fc26e01d2e72802945be4949f62223cef0006b4858e0a",
    "signature": "0x65d6d3da9a125060d26237d4300f087f35fd4f8aba9d4c85fe5375ec30ca2707101d824006b2a49c5e3f7c280be4ab8a8c470cc46a61cc348fc3465f608d80c81c",
    "signer": "0x15A1679B5B40F95A49D54741E1993518dc9C2129",
    "userId": "819951979"
  }
}