{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1478492",
    "entityType": "User",
    "nonce": "0x9b8ee590e1a1d6b1ac458459e2985f376d55042e21cd7856ebe5472e49f0420f",
    "signature": "0x42b49207c6aee228235fed52c6aae4ca860820edd1652a16561f65abcb225da74868e846e58ce80fd77c4962f65709f99252beb28810cb3fe4abf77cdcd407271b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}