{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302673",
    "entityType": "User",
    "nonce": "0x4c45251fa0d1a650d93ebde540a0fd64cd6aa493d8e9f633bce7700e19839533",
    "signature": "0x55f65830291b8348e015f498023723554069c26086288dde74b5a97a65d40774608c207e3cecc1b614572905e66fdb0f9cbac8da1e4726b13f0d72da374b825b1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}