{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x5d0c816539988d3de874b827d872f1c68179da2d26cf40e31b578dd363e0c2c8",
    "signature": "0xee3b1640ae2892f67c6a94f02aaa4340562afd628bfcdc710e3be1bc852f4ccd252c5982fca11e9d21dbce6b7861199b025580b502841155f30bb3ea9e9a367d1c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}