{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x00b872b27ec3af6561a8ca17da585ecb58bd313db1edb532c27bac5d8503517a",
    "signature": "0x1f5f10d7e78850d58995035e10128b706304d5f32994de27d3c9a8041ceba9015ddbb7c7781d64a416ab421c4bc29708455438d2819d8bc12fa7c1c0946c13ec1b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}