{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76657",
    "entityType": "User",
    "nonce": "0x4b515c7390fd5f8ebb3d3f56a8bb3ddcd821bb423cfb583dcf360ccbf9656980",
    "signature": "0x3cca438c661ee201155208779a18aac07921047ba5d847e74e0ae19e82bed01448d809a15c7773986ef202043cd12988542db492e970876a87dce7e080c6a50c1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}