{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe30df267bd1b2b9ba8776c689eea88fd719d6470c9e45eb94e38ffb6b03dc05c",
    "signature": "0x5d99fea74c01b2c9a258d9a1d7ffc38ddb54ca22971c4396556be3dad56c5ffc4ac5eaf5aa1f750041f21b11ed13bce78e12bad6992f9e218b2d2e0683ee08351c",
    "signer": "0x5071366AB603273E4DD5018aF6ee7e6459160231",
    "userId": "961912866"
  }
}