{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x58c636c047a969ceec3ecc883e24467751f63cebee58abe4b4f98b349878e260",
    "signature": "0xbbab76d75423fcc05278fc0f2db73d956ce0fb379a0907435136a8e0983d9c772683bdd8f57b8a19e1c61ae5dca9337ae5a4b31af7f48ab1a532dea4d4f48dbf1b",
    "signer": "0xF6f9B38959b9BBB3b5FeC870eef2C3309ac8acf9",
    "userId": "625091206"
  }
}