{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55385283",
    "entityType": "User",
    "nonce": "0x01124d720f5c522d052228565e460a73ba6299cc9d5fdfce82e49e9e4156e1f2",
    "signature": "0x43f17c6f8a9cbd6a978206b2ee85d4937e85522eaebe1b211b12c849e448484d22771858c7c3a9c44fb05c927f558a18713af85e9163a308db2c902c952be3dc1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}