{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "185748",
    "entityType": "User",
    "nonce": "0x91ba31399a00766810e1f2817c1d2d83e645eb51a6f7c4ed0ac5b32794675fb6",
    "signature": "0xde37e636d84ad7deffd74d672d28656419f5f7b4da0622af4242b29339b24e3521cb802188e8d9129cd91b29f6a0f20e1e00210250702dcd49fa02efe6bf10621b",
    "signer": "0xEa18e4A421681E765a3c05b0dd4425b850bC70ED",
    "userId": "774002293"
  }
}